switch (expression) {
case value1:
// code
break;
case value2:
// code
break;
...
...
default:
// default statements
}
int x = 5;
switch(x) {
case 1:
System.out.println("case 1");
break;
case 2:
System.out.println("case 2");
break;
default:
System.out.println("default. x="+x);
}