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자바 for 루프 프로그램의 일부를 여러 번 반복하는 데 사용됩니다. 반복 횟수가 다음과 같은 경우 결정된 , for 루프를 사용하는 것이 좋습니다.

Java에는 세 가지 유형의 for 루프가 있습니다.

• 단순 for 루프
• 각각 또는 향상된 for 루프
• 루프에 대해 라벨이 지정됨

Java 단순 for 루프

간단한 for 루프는 다음과 같습니다. 씨 / C++ . 우리는 변하기 쉬운 , 조건 및 증가/감소 값을 확인하십시오. 이는 네 부분으로 구성됩니다.

초기화: 루프가 시작될 때 한 번 실행되는 초기 조건입니다. 여기서는 변수를 초기화하거나 이미 초기화된 변수를 사용할 수 있습니다. 선택적인 조건입니다.상태: 루프의 상태를 테스트하기 위해 매번 실행되는 두 번째 조건입니다. 조건이 거짓이 될 때까지 계속 실행됩니다. true 또는 false 중 하나의 부울 값을 반환해야 합니다. 선택적인 조건입니다.증가/감소: 변수값을 증가 또는 감소시킵니다. 선택적인 조건입니다.성명: 두 번째 조건이 false가 될 때까지 루프의 문이 매번 실행됩니다.

통사론:

배열 c의 문자열

 for(initialization; condition; increment/decrement){ //statement or code to be executed } 

흐름도:

예:

ForExample.java

 //Java Program to demonstrate the example of for loop //which prints table of 1 public class ForExample { public static void main(String[] args) { //Code of Java for loop for(int i=1;i<=10;i++){ system.out.println(i); } < pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 1 2 3 4 5 6 7 8 9 10 </pre> <h2>Java Nested for Loop</h2> <p>If we have a for loop inside the another loop, it is known as nested for loop. The inner loop executes completely whenever outer loop executes.</p> <p> <strong>Example:</strong> </p> <p> <strong>NestedForExample.java</strong> </p> <pre> public class NestedForExample { public static void main(String[] args) { //loop of i for(int i=1;i<=3;i++){ loop of j for(int system.out.println(i+' '+j); } end i < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3 </pre> <p> <strong>Pyramid Example 1:</strong> </p> <p> <strong>PyramidExample.java</strong> </p> <pre> public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print('* '); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+' '+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+' '+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){></pre></=3;i++){></pre></=10;i++){>

Java 중첩 for 루프

다른 루프 안에 for 루프가 있는 경우 이를 중첩 for 루프라고 합니다. 외부 루프가 실행될 때마다 내부 루프가 완전히 실행됩니다.

예:

NestedForExample.java

김프 배경 삭제

 public class NestedForExample { public static void main(String[] args) { //loop of i for(int i=1;i<=3;i++){ loop of j for(int system.out.println(i+\' \'+j); } end i < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3 </pre> <p> <strong>Pyramid Example 1:</strong> </p> <p> <strong>PyramidExample.java</strong> </p> <pre> public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print(\'* \'); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){></pre></=3;i++){>

피라미드 예 1:

피라미드Example.java

 public class PyramidExample { public static void main(String[] args) { for(int i=1;i<=5;i++){ for(int j="1;j&lt;=i;j++){" system.out.print(\'* \'); } system.out.println(); new line < pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * </pre> <p> <strong>Pyramid Example 2:</strong> </p> <p> <strong>PyramidExample2.java</strong> </p> <pre> public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print(&apos;* &apos;); } System.out.println();//new line } } } </pre> <p> <strong>Output:</strong> </p> <pre> * * * * * * * * * * * * * * * * * * * * * </pre> <h2>Java for-each Loop</h2> <p>The for-each loop is used to traverse array or collection in Java. It is easier to use than simple for loop because we don&apos;t need to increment value and use subscript notation.</p> <p>It works on the basis of elements and not the index. It returns element one by one in the defined variable.</p> <p> <strong>Syntax:</strong> </p> <pre> for(data_type variable : array_name){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForEachExample.java</strong> </p> <pre> //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } </pre> <span> Test it Now </span> <p> <strong>Output:</strong> </p> <pre> 12 23 44 56 78 </pre> <h2>Java Labeled For Loop</h2> <p>We can have a name of each Java for loop. To do so, we use label before the for loop. It is useful while using the nested for loop as we can break/continue specific for loop.</p> <h4>Note: The break and continue keywords breaks or continues the innermost for loop respectively.</h4> <p> <strong>Syntax:</strong> </p> <pre> labelname: for(initialization; condition; increment/decrement){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>LabeledForExample.java</strong> </p> <pre> //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){></pre></=5;i++){>

피라미드 예 2:

피라미드Example2.java

 public class PyramidExample2 { public static void main(String[] args) { int term=6; for(int i=1;i=i;j--){ System.out.print('* '); } System.out.println();//new line } } } 

산출:

테스트 유형

 * * * * * * * * * * * * * * * * * * * * * 

Java for-each 루프

for-each 루프는 Java에서 배열이나 컬렉션을 순회하는 데 사용됩니다. 값을 증가시키고 첨자 표기법을 사용할 필요가 없기 때문에 간단한 for 루프보다 사용하기가 더 쉽습니다.

인덱스가 아닌 요소를 기반으로 작동합니다. 정의된 변수에 요소를 하나씩 반환합니다.

통사론:

 for(data_type variable : array_name){ //code to be executed } 

예:

ForEachExample.java

 //Java For-each loop example which prints the //elements of the array public class ForEachExample { public static void main(String[] args) { //Declaring an array int arr[]={12,23,44,56,78}; //Printing array using for-each loop for(int i:arr){ System.out.println(i); } } } 

산출:

스위치 문 자바

 12 23 44 56 78 

Java 레이블이 지정된 For 루프

각 Java for 루프의 이름을 가질 수 있습니다. 이를 위해 for 루프 앞에 label을 사용합니다. 특정 for 루프를 중단/계속할 수 있으므로 중첩된 for 루프를 사용하는 동안 유용합니다.

참고: break 및 continue 키워드는 각각 가장 안쪽 for 루프를 중단하거나 계속합니다.

통사론:

 labelname: for(initialization; condition; increment/decrement){ //code to be executed } 

예:

LabeledForExample.java

.다음 자바

 //A Java program to demonstrate the use of labeled for loop public class LabeledForExample { public static void main(String[] args) { //Using Label for outer and for loop aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break aa; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 </pre> <p>If you use <strong>break bb;</strong> , it will break inner loop only which is the default behaviour of any loop.</p> <p> <strong>LabeledForExample2.java</strong> </p> <pre> public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){></pre></=3;i++){>

당신이 사용하는 경우 휴식 bb; , 모든 루프의 기본 동작인 내부 루프만 중단됩니다.

LabeledForExample2.java

 public class LabeledForExample2 { public static void main(String[] args) { aa: for(int i=1;i<=3;i++){ bb: for(int j="1;j&lt;=3;j++){" if(i="=2&amp;&amp;j==2){" break bb; } system.out.println(i+\' \'+j); < pre> <p> <strong>Output:</strong> </p> <pre> 1 1 1 2 1 3 2 1 3 1 3 2 3 3 </pre> <h2>Java Infinitive for Loop</h2> <p>If you use two semicolons ;; in the for loop, it will be infinitive for loop.</p> <p> <strong>Syntax:</strong> </p> <pre> for(;;){ //code to be executed } </pre> <p> <strong>Example:</strong> </p> <p> <strong>ForExample.java</strong> </p> <pre> //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println(&apos;infinitive loop&apos;); } } } </pre> <p> <strong>Output:</strong> </p> <pre> infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c </pre> <p>Now, you need to press ctrl+c to exit from the program.</p> <h2>Java for Loop vs while Loop vs do-while Loop</h2> <table class="table"> <tr> <th>Comparison</th> <th>for loop</th> <th>while loop</th> <th>do-while loop</th> </tr> <tr> <td>Introduction</td> <td>The Java for loop is a control flow statement that iterates a part of the <a href="/java-programs-java-programming-examples">programs</a> multiple times. </td> <td>The Java while loop is a control flow statement that executes a part of the programs repeatedly on the basis of given boolean condition.</td> <td>The Java do while loop is a control flow statement that executes a part of the programs at least once and the further execution depends upon the given boolean condition.</td> </tr> <tr> <td>When to use</td> <td>If the number of iteration is fixed, it is recommended to use for loop.</td> <td>If the number of iteration is not fixed, it is recommended to use while loop.</td> <td>If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use the do-while loop.</td> </tr> <tr> <td>Syntax</td> <td>for(init;condition;incr/decr){ <br> // code to be executed <br> } </td> <td> while(condition){ <br> //code to be executed <br> } </td> <td> do{ <br> //code to be executed <br> }while(condition); </td> </tr> <tr> <td>Example</td> <td> //for loop <br> for(int i=1;i<=10;i++){ <br> System.out.println(i); <br> } </=10;i++){></td> <td> //while loop <br> int i=1; <br> while(i<=10){ <br> System.out.println(i); <br> i++; <br> } </=10){></td> <td> //do-while loop <br> int i=1; <br> do{ <br> System.out.println(i); <br> i++; <br> }while(i<=10); < td> </=10);></td></tr> <tr> <td>Syntax for infinitive loop</td> <td> for(;;){ <br> //code to be executed <br> }</td> <td> while(true){ <br> //code to be executed <br> }</td> <td> do{ <br> //code to be executed <br> }while(true); </td> </tr> </table> <hr></=3;i++){>

Java 부정사 for 루프

세미콜론을 두 개 사용하는 경우 ;; for 루프에서는 부정사가 for 루프가 됩니다.

통사론:

 for(;;){ //code to be executed } 

예:

ForExample.java

 //Java program to demonstrate the use of infinite for loop //which prints an statement public class ForExample { public static void main(String[] args) { //Using no condition in for loop for(;;){ System.out.println('infinitive loop'); } } } 

산출:

 infinitive loop infinitive loop infinitive loop infinitive loop infinitive loop ctrl+c 

이제 프로그램을 종료하려면 ctrl+c를 눌러야 합니다.

Java for 루프 vs while 루프 vs do-while 루프