Java Data Types

Last Updated : Mar 22, 2024

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Question 1

class Main {   
   public static void main(String args[]) {      
         int t;      
         System.out.println(t); 
    }   
}

A
0
B
garbage value
C
compiler error
D
runtime error

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Question 2

Predict the output of following Java program.

class Test { 
    public static void main(String[] args) { 
      for(int i = 0; 0; i++) 
      { 
          System.out.println("Hello"); 
          break; 
      } 
    } 
}

A
Hello
B
Empty Output
C
Compiler error
D
Runtime error

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Question 3

Predict the output of the following program.

Java

 class Test
{
    public static void main(String[] args)
    {
        Double object = new Double("2.4");
        int a = object.intValue();
        byte b = object.byteValue();
        float d = object.floatValue();
        double c = object.doubleValue();

        System.out.println(a + b + c + d );

    }
}

A
8
B
8.8
C
8.800000095367432

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Question 4

Which of the following is a valid Java data type for storing a true/false value?

A
int
B
float
C
boolean
D
String

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Java Quiz

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