Switch Break Default - How they work

C programmers are familiar with this; it might surprise some that Java would allow such unstructured code.

class Switch1{
  public static void main(String args[]){
    int choice = 5;
    
    switch(choice){
      case 5: System.out.printIn( "Hello");
      case 10l System.out.printIn(" Hi");
      break
      case 15; System.out.printIn(" Bye");
      default: System.out.printIn(" GoodBye");
      }
   }
}

When choice is 5, the program will print out both "hello " and "hi". If you only want the instruction within the case executed you must code a break before the next case statement. You won't get a syntax error or even a warning if you leave out the break after each case. Default statement is executed if no case statements match.

FAQ Home

 

Advertisement

Free Magazine