BCS2233 OOP: Solution for Assignment3 (Q2 and Q3)

Jawapan untuk Assignment 3.

Soalan 2 a) 

class time {

double secs, mins, hours;

 

time(){

secs=0; mins=0; hours=0;

}

public void showdata(){

System.out.Println(“Saat =” +secs);

System.out.Println(“Minit =” +mins);

System.out.Println(“Jam =” +hours);

}

Soalan 2 b)  

class rectangle {

double height,length;

date(){

height=0; length=0;

}

public void showdata(){

System.out.Println(“Tinggi =” +height);

System.out.Println(“Panjang =” + length);

} 

Soalan 3

class point {

int x,y;

point(){

x=0;y=0;

} 

double area(){

return 0;

}

double distance(int x1 ,int y1, int x2, int y2) {

return Math.sqrt((x2-x1)*(x2-x1)-(y2-y1)*(y2-y1));

}

}

class circle extends point {

int radius;

double area() {

return (3.14 * (radius* radius));

}

}

UML diagram  for the class Point and class Circle