1 import java.awt.Point;
2 class Box2
3 { int x1;
4 int y1;
5 int x2;
6 int y2;
7
8 Box2(int x,int y,int z,int w)
9 { this.x1 = x;
10 this.y1 = y;
11 this.x2 = z;
12 this.y2 = w;
13 }
14 Box2(Point topleft,Point bottomright)
15 { this(topleft.x,topleft.y,bottomright.x,bottomright.y);
16 }
17 Box2(Point topleft,int wide,int height)
18 { this(topleft.x,topleft.y,(topleft.x += wide),(topleft.y -= height));
19 }
20 public static void main(String[] args)
21 { Box2 box0 = new Box2(1,2,3,4);
22 System.out.print(box0.x1+" "+box0.y1+" "+box0.x2+" "+box0.y2);
23 Box2 box1 = new Box2(new Point(1,2),3,4);
24 System.out.print(box1.x1+" "+box1.y1+" "+box1.x2+" "+box1.y2);
25 Box2 box2 = new Box2(new Point(1,2),new Point(3,4));
26 System.out.print(box2.x1+" "+box2.y1+" "+box2.x2+" "+box2.y2);
27 }
28 }
1 import java.awt.Point;
2 class Box3
3 { int x1;
4 int y1;
5 int x2;
6 int y2;
7
8 Box3(int x,int y,int z,int w)
9 { this.x1 = x;
10 this.y1 = y;
11 this.x2 = z;
12 this.y2 = w;
13 }
14 Box3(Point lefttop,Point bottomright)
15 { this.x1= lefttop.x;
16 this.y1= lefttop.y;
17 this.x2= bottomright.x;
18 this.y2= bottomright.y;
19 }
20 Box3(Point lefttop,int width,int height)
21 {this.x1 = lefttop.x;
22 this.y1 = lefttop.y;
23 this.x2 = lefttop.x + width;
24 this.y2 = lefttop.y - height;
25 }
26 void printBox()
27 { System.out.print(x1+" "+y1+" "+x2+" "+y2+" ");
28 }
29 public static void main (String[] args)
30 { Box3 box3;
31 box3 = new Box3(1,2,3,4);
32 box3.printBox();
33 box3 = new Box3(new Point(1,2),3,4);
34 box3.printBox();
35 box3 = new Box3(new Point(1,2),new Point(3,4));
36 box3.printBox();
37 }
38 }
1 import java.awt.Point;
2 class Box4
3 { int x1;
4 int y1;
5 int x2;
6 int y2;
7
8 Box4(int x,int y,int z,int w)
9 { this.x1 = x;
10 this.y1 = y;
11 this.x2 = z;
12 this.y2 = w;
13 }
14 Box4(Point lefttop,Point bottomright)
15 { this(lefttop.x,lefttop.y,bottomright.x,bottomright.y);
16 }
17 Box4(Point lefttop,int width,int height)
18 {this(lefttop.x,lefttop.y,lefttop.x += width,lefttop.y -= height);
19 }
20 void printBox()
21 { System.out.print(x1+" "+y1+" "+x2+" "+y2+" ");
22 }
23 public static void main (String[] args)
24 { Box4 box4;
25 box4 = new Box4(1,2,3,4);
26 box4.printBox();
27 box4 = new Box4(new Point(1,2),3,4);
28 box4.printBox();
29 box4 = new Box4(new Point(1,2),new Point(3,4));
30 box4.printBox();
31 }
32 }
