1 public class SwitchTest { 2 3 public int test(int x) { 4 switch (x) { 5 case 0: 6 7 case 1: 8 x = x + 10; 9 break; 10 11 case 2: 12 x = x + 20; 13 break; 14 15 default: 16 break; 17 } 18 19 return x; 20 } 21 }