What is the output of the following program: public class Confuz { public static

ID: 3860403 • Letter: W

Question

What is the output of the following program:

public class Confuz

{

public static void main(String[] args)

{

int y = 4;

foo (y);

System.out.println (y);

}

public static void foo (int n)

{

n += 4;

}

Output of this program will be 4

Reason:

when you run the program, it will pass value of y to function foo(y) then inside foo() value of n will add with 4

but foo() not returning any value so it wont effect to main function then after foo() main function will print the value of y which is 4

BUT if you want to print added value then you can return value from foo() and assign that value to y :

public static int foo(int n)

{

n+=4;

return n;

}

or you can simply do this:

void foo (int n)

{

n += 4;

System.out.println (n);

}

I hope this helps you.... :)

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