Thursday, April 9, 2020

Java Output Question set-3


Set – 3

1.public class prg {
    public static void main(String[] args) {
        char a=0x4; //Unicode of 'A'
        char b=0x42; //Unicode of 'B'
     
        System.out.print(a+"" + b+"");
        System.out.print("-");
        System.out.print(a+b);     
    }
}
A.B-AB
B.AB-3
C.AB-ERROR
D.A B -3

2.public class prg {
    public static void main(String[] args) {
        System.out.println( (byte) 0xff);
    }
}
A.-1
B.255
C.65535
D.0xff

3.public class prg {
    public static void main(String[] args) {
        System.out.println( (int)(char)(byte) 0xff);
    }
}
A.-1
B.255
C.65535
D.0xff

4.class Opr
{
    public static void main(String args[])
    {
        int x=5,y;
        y= ++x + x++ + --x;
        System.out.println(x + "," + y);
    }
}

A.6,5
B.6,8
C.6,2
D.None of these

5.class Opr
{
    public static void main(String args[])
    {
        boolean ans=false;
        if(ans=true)
            System.out.print("Done");
        else
            System.out.print("Fail");
    }
}
A.Done
B.Fail
C.Error
D.DoneFail

6.class Opr
{
    public static void main(String args[])
    {
        byte a,b;
        a=0; b=20;
        b=assign(a);
        System.out.println(a +","+ b);

       
    }
    public static byte assign(byte a)
    {
        a+=00;
        return a;
    }
   
}
A.0, 0
B.0, 0
C.0, 0
D.None of these

7.class Opr
{
    public static void main(String args[])
    {
        int a,b,result;
        a=0; b=20;
        result=(int)(b>=a);
        System.out.print(result);
    }
}
A.Error
B.True
C.20

8.public class Opr {
    public static void main(String[] args) {
      int a=0;
      System.out.print((a==true)? "Hello": "Hi");
    }
}
A.Hello
B.Hi
C.Error
D.Null

9.public class Opr {
    public static void main(String[] args) {
        System.out.print(0x000A + 0b00 + 0xff);
    }
}
A.Error
B.255
C.20ff
D.275

10.class Opr
{
    public static void main(String args[])
    {
        System.out.print( ((true && true) || false) );
    }
}
A.Error
B.false
C.true
D.None of these

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