/* * [TestSwitch.java] * * Summary: Demonstrate the use of switch and case. * * Copyright: (c) 2009-2017 Roedy Green, Canadian Mind Products, http://mindprod.com * * Licence: This software may be copied and used freely for any purpose but military. * http://mindprod.com/contact/nonmil.html * * Requires: JDK 1.8+ * * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/ * * Version History: * 1.0 2009-01-01 */ package com.mindprod.example; import static java.lang.System.*; /** * Demonstrate the use of switch and case. * * @author Roedy Green, Canadian Mind Products * @version 1.0 2009-01-01 * @since 2009-01-01 */ public final class TestSwitch { /** * static per-class constant */ private static final int FIVE = 5; /** * instance per-object constant */ @SuppressWarnings( { "FieldMayBeStatic" } ) private final int SEVEN = 7; /** * demonstrate use of switch in an instance method */ private void process() { // get a pseodorandom number 0..7 final int n = ( int ) ( System.currentTimeMillis() % 8 ); out.println( n ); // local constant final int SIX = 6; switch ( n ) { case 0: out.println( "was 0" ); break; case 1: case 3: out.println( "was 1 or 3" ); break; case FIVE: out.println( "was 5" ); break; // not permitted // case SIX: // out.println( "was 6" ); // break; case SEVEN: out.println( "was 7" ); break; default: out.println( "was 2, 4 or 6" ); } } /** * Test harness * * @param args not used */ public static void main( String[] args ) { new TestSwitch().process(); } }