Java - Decision Control and looping statement - Switch Quiz

Which of these selection statements test only for equality?

• 1]

  if

• 2]

  switch

• 3]

  if & switch

• 4]

  none of the mentioned

Which of this statement is incorrect?

• 1]

  switch statement is more efficient than a set of nested ifs

• 2]

  two case constants in the same switch can have identical values

• 3]

  switch statement can only test for equality, whereas if statement can evaluate any type of boolean expression

• 4]

  it is possible to create a nested switch statements

What will be the output of the following Java program?

    class Output 
    {
        public static void main(String args[]) 
        {    
             int a = 5;
             int b = 10;
             first: 
             {
                second: 
                {
                   third: 
                   { 
                       if (a ==  b >> 1)
                           break second;
                   }
                   System.out.println(a);
                }
                System.out.println(b);
             }
        } 
    }

• 1]

  5 10

• 2]

  10 5

• 3]

  5

• 4]

  10

What is the valid data type for variable “a” to print “Hello World”?

switch(a)
{
   System.out.println("Hello World");
}

• 1]

  int and float

• 2]

  byte and short

• 3]

  char and long

• 4]

  byte and char