[Java Review] 4: Ram analysis

The following notes are based on video series: 手把手教你用Java基础教程 - 北京尚学堂 - 马士兵

Step by step ram analysis

Corresponding Code:

public class Point {
	double x;
	double y;
	double z;
    
	Point(double _x, double _y, double _z){
		x = _x;
		y = _y;
		z = _z;
	}
	
	public void setX(double _x){
		x = _x;
	}
	
	public void setY(double _y){
		y = _y;
	}
	
	public void setZ(double _z){
		z = _z;
	}
	
	public double getDistance(Point p){
		return Math.pow(x-p.x,2) + Math.pow(y-p.y,2) + Math.pow(y-p.y,2);
	}

}

class TestPoint{
	
	public static void main(String[] args) {
     	double a = 1.0, b = 2.0, c = 3.0;
		Point p1 = new Point(a, b, c);
		p1.setX(4);
		System.out.println(p1.getDistance(new Point(3,2,1)));
	}
}