j_U1p9.java

class prog9 { int real, imag; prog9(int r, int i) { real=r; imag=i; } public static prog9 add(prog9 c1, prog9 c2) { prog9 temp = new prog9(0,0); temp.real=c1.real+c2.real; temp.imag=c1.imag+c2.imag; return(temp); } public static prog9 mul(prog9 c1, prog9 c2) { prog9 temp = new prog9(0,0); temp.real=c1.real*c2.real; temp.imag=c1.imag*c2.imag; return(temp); } public static prog9 sub(prog9 c1, prog9 c2) { prog9 temp = new prog9(0,0); temp.real=c1.real-c2.real; temp.imag=c1.imag-c2.imag; return(temp); } public static void main(String args[]) { prog9 obj1 = new prog9(1,2), obj2 = new prog9(1,2), temp; temp = add(obj1,obj2); System.out.println(temp.real+"."+temp.imag); temp = mul(obj1,obj2); System.out.println(temp.real+"."+temp.imag); temp = sub(obj1,obj2); System.out.println(temp.real+"."+temp.imag); } }