Consider the following program segment in a Java-like programming language, clas

Question

 Consider the following program segment in a Java-like programming language,



class Sample {

static int i;

static int M[] = new int[3];

static void pass (int x, int y, int z)

{ i = z;

z = y;

x = x + 1;

y = i;

}       

static void main (String argv[])

{ i = 1;

M[1] = 3;

M[2] = 1;

pass(i, M[i], M[i+1]);

System.out.println (i, M[1], M[2]);

}

}





What numbers will be printed by this program if parameter correspondance is

implemented by



==>> call by name?



I already knows the numbers, but I don't know how I got them?

They are (2, 3, 2)



So, if anybody knows please explain:

Explanation / Answer

Function Call: pass(i, M[i], M[i+1]); //here i=1, M[i]=3, M[i+1] =1Next it enters the function PASSIn PASS:i=z //here z=M[i+1] = 1, therefore i becomes 1z=y //here y=M[i] =M[1]=3, therefore z=M[2]=3x = x+1 //here x=i=1, therefore i =i+1 = 2y =i, therefore y will be become i which is equal to 2Therefore the final values of i =2, M[1] = 3, M[2] = 2

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