Operators and Assignments

Q1: 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);
    }
}

A -2147483648 and 1

B 0x80000000 and 0x00000001

C -2147483648 and -1

D 1 and -2147483648

Q2: 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);
    }
}

A true

B false

C Compilation fails

D An exception is thrown at runtime

Q3: What will be the output of the program?
class Two 
{
    byte x;
}

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

    void start() 
    {
        Two t = new Two();
        System.out.print(t.x + ' ');
        Two t2 = fix(t);
        System.out.println(t.x + ' ' + t2.x);
    }

    Two fix(Two tt) 
    {
        tt.x = 42;
        return tt;
    }
}

A null null 42

B 0 0 42

C 0 42 42

D 0 0 0

Q4: What will be the output of the program?
public class Test 
{ 
    public static void leftshift(int i, int j) 
    {
        i <<= j; 
    } 
    public static void main(String args[]) 
    {
        int i = 4, j = 2; 
        leftshift(i, j); 
        System.out.println(i); 
    } 
}

A 2

B 4

C 8

D 16

Q5: 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;
    }
}

A 12 15

B 15 15

C 3 4 5 3 7 5

D 3 7 5 3 7 5

Q6: What will be the output of the program?
class Test 
{
    static int s;
    public static void main(String [] args) 
    {
        Test p = new Test();
        p.start();
        System.out.println(s);
    }

    void start() 
    {
        int x = 7;
        twice(x);
        System.out.print(x + ' ');
    }

    void twice(int x) 
    {
        x = x*2;
        s = x;
    }
}

A 7 7

B 7 14

C 14 0

D 14 14

Q7: 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 );
    }
}

A 0

B 7

C 8

D 14

Q8: What will be the output of the program?
class SC2 
{
    public static void main(String [] args) 
    {
        SC2 s = new SC2();
        s.start();
    }

    void start() 
    {
        int a = 3;
        int b = 4;
        System.out.print(' ' + 7 + 2 + ' ');
        System.out.print(a + b);
        System.out.print(' ' + a + b + ' ');
        System.out.print(foo() + a + b + ' ');
        System.out.println(a + b + foo());
    }

    String foo() 
    {
        return 'foo';
    }
}

A 9 7 7 foo 7 7foo

B 72 34 34 foo34 34foo

C 9 7 7 foo34 34foo

D 72 7 34 foo34 7foo

Q9: 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';
    }
}

A slip stream

B slipstream stream

C stream slip stream

D slipstream slip stream

Q10: 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);
    }
}

A 5 2

B 5 3

C 6 3

D 6 4

Q11: 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');
    }
}

A ok

B dokey

C ok dokey

D No output is produced

E Compilation error

Q12: What will be the output of the program?
class BoolArray 
{
    boolean [] b = new boolean[3];
    int count = 0;

    void set(boolean [] x, int i) 
    {
        x[i] = true;
        ++count;
    }

    public static void main(String [] args) 
    {
        BoolArray ba = new BoolArray();
        ba.set(ba.b, 0);
        ba.set(ba.b, 2);
        ba.test();
    }

    void test() 
    {
        if ( b[0] && b[1] | b[2] )
            count++;
        if ( b[1] && b[(++count - 2)] )
            count += 7;
        System.out.println('count = ' + count);
    }
}

A count = 0

B count = 2

C count = 3

D count = 4

Q13: 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);
    }
}

A small

B tiny

C huge

D Compilation fails

Q14: 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;
    }
}

A true true

B false true

C true false

D false false

Q15: 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);
    }
}

A 5 3

B 8 2

C 8 3

D 8 5


img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.