What is the output of the following JAVA program?

class simple

{

public static void main(String[ ] args)

{

simple obj = new simple( );

obj.start( );

}

void start( )

{

long [ ] P= {3, 4, 5};

long [ ] Q= method (P);

System.out.print (P[0] + P[1] + P[2]+”:”);

System.out.print (Q[0] + Q[1] + Q[2]);

}

long [ ] method (long [ ] R)

{

R [1]=7;

return R;

}

} /end of class

Consider the given code :

STEP 1 :

class simple

{

public static void main(String[ ] args)

{

simple obj = new simple( );               / it creates an object of class simple

obj.start( );                                          / then calls the function start

}

STEP 2:

void start( )

{

long [ ] P= {3, 4, 5};          / it creates an array with three integers.

long [ ] Q= method (P);        /* function method P is called here, which is then reflected in  array Q */

System.out.print (P[0] + P[1] + P[2]+”:”);

System.out.print (Q[0] + Q[1] + Q[2]);

}

STEP 3 :

long [ ] method (long [ ] R)

{

R [1]=7;               /*it indirectly change the value of second element of array to 7 which reflects in array Q. Also address of P is passed as an argument, it changes the value of array P second element to 7 */

return R;

}

STEP 4:

Now ,  Array P becomes , long [ ] P= {3, 7, 5};       

Array Q becomes , long [ ] Q= {3, 7, 5};            

System.out.print (P[0] + P[1] + P[2]+”:”);             / it print the sum of elements of array P i.e. (3+7+5 = 15)