75 lines
1.9 KiB
Markdown
75 lines
1.9 KiB
Markdown
---
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title: Break Control Statement
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---
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# Break Control Statement
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Terminates the loop and starts the execution of the code that immediately follows the loop. If you have nested loops, the `break` statement will only end the loop in which it is placed.
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```java
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// Loop 1
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for (int i = 0; i < 10; i++)
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{
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// Loop 2
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for (int j = 0; j < 10; j++)
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{
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if (i == 5 && j == 5)
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{
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break; // Will terminate Loop 2, but Loop 1 will keep going
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}
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}
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}
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```
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But if you do want to break out of the outer loop too, you can use a label to exit:
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```java
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loop1: // This is a label
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for (int i = 0; i < 10; i++)
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{
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// Loop 2
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for (int j = 0; j < 10; j++)
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{
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if (i == 5 && j == 5)
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{
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break loop1; // Will break out of Loop 1, instead of Loop 2
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}
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}
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}
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```
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 <a href='https://repl.it/CJZA/0' target='_blank' rel='nofollow'>Run Code</a>
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`break` statements can be particulary useful while searching for an element in an array. Using `break` in the following code improves efficiency as the loop stops as soon as the element we are looking for (`searchFor`) is found, instead of going on till the end of `arrayInts` is reached.
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```java
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int j = 0;
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int[] arrayOfInts = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
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int searchFor = 5;
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for (int i : arrayOfInts)
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{
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if (arrayOfInts[j] == searchFor)
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{
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break;
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}
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j++;
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}
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System.out.println("j = " + j);
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```
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Break statement can also be used under while statement.
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```java
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int i = 0;
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int[] arrayOfInts = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
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int searchFor = 5;
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while(i < 10){
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System.out.println("i = " + j);
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if(arrayOfInts[i] > 7){
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break;
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}
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}
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```
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 <a href='https://repl.it/CJZC/0' target='_blank' rel='nofollow'>Run Code</a>
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