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What will be the output of the program? class BoolArray { boolean b = new boolean; int count = 0; void set(boolean x, int i) { x = true; ++count; } public static void main(String args) { BoolArray ba = new BoolArray();

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1. 

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

Answer: Option C

Explanation:

The reference variables b and x both refer to the same boolean array. count is incremented for each call to the set() method, and once again when the first if test is true. Because of the && short circuit operator, count is not incremented during the second if test.

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