1. What will be the output of the program?

class PassA
{
    public static void main(String [] args)
    {
        PassA p = new PassA();
        p.start();
    }

    void start()
    {
        long [] a1 = {3,4,5};
        long [] a2 = fix(a1);
        System.out.print(a1[0] + a1[1] + a1[2] + " ");
        System.out.println(a2[0] + a2[1] + a2[2]);
    }

    long [] fix(long [] a3)
    {
        a3[1] = 7;
        return a3;
    }
}

12 15
15 15
3 4 5 3 7 5
3 7 5 3 7 5

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2. What will be the output of the program?

class Test
{
    public static void main(String [] args)
    {
        Test p = new Test();
        p.start();
    }

    void start()
    {
        boolean b1 = false;
        boolean b2 = fix(b1);
        System.out.println(b1 + " " + b2);
    }

    boolean fix(boolean b1)
    {
        b1 = true;
        return b1;
    }
}

true true
false true
true false
false false

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3. What will be the output of the program?

class PassS
{
    public static void main(String [] args)
    {
        PassS p = new PassS();
        p.start();
    }

    void start()
    {
        String s1 = "slip";
        String s2 = fix(s1);
        System.out.println(s1 + " " + s2);
    }

    String fix(String s1)
    {
        s1 = s1 + "stream";
        System.out.print(s1 + " ");
        return "stream";
    }
}

slip stream
slipstream stream
stream slip stream
slipstream slip stream

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4. What will be the output of the program?

class BitShift
{
    public static void main(String [] args)
    {
        int x = 0x80000000;
        System.out.print(x + " and ");
        x = x >>> 31;
        System.out.println(x);
    }
}

-2147483648 and 1
0x80000000 and 0x00000001
-2147483648 and -1
1 and -2147483648

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5. What will be the output of the program?

class Equals
{
    public static void main(String [] args)
    {
        int x = 100;
        double y = 100.1;
        boolean b = (x = y); /* Line 7 */
        System.out.println(b);
    }
}

true
false
Compilation fails
An exception is thrown at runtime

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6. What will be the output of the program?

class Test
{
    public static void main(String [] args)
    {
        int x=20;
        String sup = (x < 15) ? "small" : (x < 22)? "tiny" : "huge";
        System.out.println(sup);
    }
}

small
tiny
huge
Compilation fails

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7. What will be the output of the program?

class Test
{
    public static void main(String [] args)
    {
        int x= 0;
        int y= 0;
        for (int z = 0; z < 5; z++)
        {
            if (( ++x > 2 ) && (++y > 2))
            {
                x++;
            }
        }
        System.out.println(x + " " + y);
    }
}

5 2
5 3
6 3
6 4

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8. What will be the output of the program?

class Test
{
    public static void main(String [] args)
    {
        int x= 0;
        int y= 0;
        for (int z = 0; z < 5; z++)
        {
            if (( ++x > 2 ) || (++y > 2))
            {
                x++;
            }
        }
    System.out.println(x + " " + y);
    }
}

5 3
8 2
8 3
8 5

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9. What will be the output of the program?

class Bitwise
{
    public static void main(String [] args)
    {
        int x = 11 & 9;
        int y = x ^ 3;
        System.out.println( y | 12 );
    }
}

0
7
8
14

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10. What will be the output of the program?

class SSBool
{
    public static void main(String [] args)
    {
        boolean b1 = true;
        boolean b2 = false;
        boolean b3 = true;
        if ( b1 & b2 | b2 & b3 | b2 ) /* Line 8 */
            System.out.print("ok ");
        if ( b1 & b2 | b2 & b3 | b2 | b1 ) /*Line 10*/
            System.out.println("dokey");
    }
}

ok
dokey
ok dokey
No output is produced

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Java - Operators and Assignments

Java - Operators and Assignments

Java Programming