iSharkFly-Docs/java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Breaking out of nested loops (#7196)

Browse Source 
* Added Maven profiles example.

* Added break examples.
This commit is contained in:
Johan Janssen 2019-06-26 20:33:48 +02:00 committed by maibin
parent 30cb9ad592
commit 9ee237c69c
2 changed files with 72 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
core-java-modules/core-java-lang-syntax/src/main/java/com/baeldung/breakloop/LoopBreaking.java Normal file
View File

@ -0,0 +1,47 @@
package com.baeldung.breakloop;
public class LoopBreaking {
public String simpleBreak() {
String result = "";
for (int outerCounter = 0; outerCounter < 2; outerCounter++) {
result += "outer" + outerCounter;
for (int innerCounter = 0; innerCounter < 2; innerCounter++) {
result += "inner" + innerCounter;
if (innerCounter == 0) {
break;
}
}
}
return result;
}
public String labelBreak() {
String result = "";
myBreakLabel:
for (int outerCounter = 0; outerCounter < 2; outerCounter++) {
result += "outer" + outerCounter;
for (int innerCounter = 0; innerCounter < 2; innerCounter++) {
result += "inner" + innerCounter;
if (innerCounter == 0) {
break myBreakLabel;
}
}
}
return result;
}
public String usingReturn() {
String result = "";
for (int outerCounter = 0; outerCounter < 2; outerCounter++) {
result += "outer" + outerCounter;
for (int innerCounter = 0; innerCounter < 2; innerCounter++) {
result += "inner" + innerCounter;
if (innerCounter == 0) {
return result;
}
}
}
return "failed";
}
}

25
core-java-modules/core-java-lang-syntax/src/test/java/com/baeldung/breakloop/LoopBreakingUnitTest.java Normal file
View File

@ -0,0 +1,25 @@
package com.baeldung.breakloop;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
class LoopBreakingUnitTest {
private LoopBreaking loopBreaking = new LoopBreaking();
@Test
void whenUsingBreak_shouldBreakInnerLoop() {
assertEquals("outer0inner0outer1inner0", loopBreaking.simpleBreak());
}
@Test
void whenUsingLabeledBreak_shouldBreakInnerLoopAndOuterLoop() {
assertEquals("outer0inner0", loopBreaking.labelBreak());
}
@Test
void whenUsingReturn_shouldBreakInnerLoopAndOuterLoop() {
assertEquals("outer0inner0", loopBreaking.usingReturn());
}
}