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Discussion :: Flow Control

  1. What will be the output of the program?

      for(int i = 0; i 3; i++)
  {     
     switch(i)    
    {          
        case 0: break;        
        case 1: System.out.print("one ");     
        case 2: System.out.print("two ");         
        case 3: System.out.print("three ");      
   }
    
} 
 System.out.println("done");

    2. A.

    done
    B.

    one two done
    C.

    one two three done
    D.

    one two three two three done

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    Answer : Option D

    Explanation :

    The variable i will have the values 0, 1 and 2.

    When i is 0, nothing will be printed because of the break in case 0.

    When i is 1, "one two three" will be output because case 1, case 2 and case 3 will be executed (they don't have break statements).

    When i is 2, "two three" will be output because case 2 and case 3 will be executed (again no break statements).

    Finally, when the for loop finishes "done" will be output.

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