switch(java.util.Arrays.asList(keys).indexOf(name)) { case /*"Ben"*/ 0: System.out.println("1 - its ben"); break; case /*"Arnold"*/ 1: System.out.println("2 - its arnold"); break; case /*Ludwig*/ 2: System.out.println("3 - its ludwig"); break; case /*Kevin*/ 3: System.out.println("4 - its kevin"); break; default: System.out.println("Unknown"); } } }
public static void main(String [] arg) throws Exception {
String name = new String("Ben");
/*Approach #1*/
if(name.equals("Ben")) System.out.println("1 - its ben");
else if(name.equals("Arnold")) System.out.println("2 - its arnold");
else if(name.equals("Ludwig")) System.out.println("3 - its ludwig");
else if(name.equals("Kevin")) System.out.println("4 - its kevin");
else System.out.println("Unknown");
/* Approach #2 */
switch(name.hashCode()) {
case /*"Ben"*/ 66667: System.out.println("1 - its ben"); break;
case /*"Arnold"*/ 196956338: System.out.println("2 - its arnold"); break;
case /*Ludwig*/ -2008003046: System.out.println("3 - its ludwig"); break;
case /*Kevin*/ 72389729: System.out.println("4 - its kevin"); break;
default: System.out.println("Unknown");
}
/* Approach #3 */
String [] keys = new String [] {"Ben", "Arnold", "Ludwig", "Kevin"};
switch(java.util.Arrays.asList(keys).indexOf(name)) {
case /*"Ben"*/ 0: System.out.println("1 - its ben"); break;
case /*"Arnold"*/ 1: System.out.println("2 - its arnold"); break;
case /*Ludwig*/ 2: System.out.println("3 - its ludwig"); break;
case /*Kevin*/ 3: System.out.println("4 - its kevin"); break;
default: System.out.println("Unknown");
}
}
}