66 lines
1.4 KiB
Java
66 lines
1.4 KiB
Java
// control/LabeledFor.java
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// (c)2017 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// For loops with "labeled break"/"labeled continue."
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public class LabeledFor {
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public static void main(String[] args) {
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int i = 0;
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outer: // Can't have statements here
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for(; true ;) { // infinite loop
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inner: // Can't have statements here
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for(; i < 10; i++) {
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System.out.println("i = " + i);
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if(i == 2) {
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System.out.println("continue");
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continue;
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}
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if(i == 3) {
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System.out.println("break");
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i++; // Otherwise i never
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// gets incremented.
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break;
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}
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if(i == 7) {
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System.out.println("continue outer");
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i++; // Otherwise i never
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// gets incremented.
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continue outer;
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}
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if(i == 8) {
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System.out.println("break outer");
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break outer;
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}
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for(int k = 0; k < 5; k++) {
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if(k == 3) {
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System.out.println("continue inner");
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continue inner;
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}
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}
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}
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}
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// Can't break or continue to labels here
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}
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}
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/* Output:
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i = 0
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continue inner
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i = 1
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continue inner
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i = 2
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continue
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i = 3
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break
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i = 4
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continue inner
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i = 5
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continue inner
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i = 6
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continue inner
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i = 7
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continue outer
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i = 8
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break outer
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*/
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