Programming (Java)

public static void main(String[] args){
int x = 4;
int y = 5;
int z;
z = A(x,y);
System.out.println("z1=" + z);
z = B(A(x,y),y);
System.out.println("z2=" + z);
z = A(++x,B(x,y));
System.out.println("z3=" + z);
} // end main
private static int A(int a,int b){
int i = b - a;
if (b < 3) i-=b;
return i;
} // end A
private static int B(int c,int d){
int j = c + d;
if (c > 3) j += d;
return j;
} // end B
}// end class