第三章第十六题（随机点）(random point)
3.16（随机点）编写程序，显示矩形中一个随机点的坐标。矩形中心位于（0，0）、宽100、高200。 3.16(Random point) Write a program that displays a random coordinate in a rectangle. The rectangle is centred at (0, 0) with width 100 and height 200.参考代码：
package chapter03;
public class Code_16 {
public static void main(String[] args) {
int randomX,randomY,directionX,directionY;
randomX = (int)(Math.random()*50);
randomY = (int)(Math.random()*100);
directionX = (int)(Math.random()*2);
directionY = (int)(Math.random()*2);
if(directionX == 0)
randomX *= -1;
if(directionY == 0)
randomY *= -1;
System.out.println("The random point is (" + randomX + "," + randomY + ")");
}
}
结果显示：
The random point is (-16,98)
Process finished with exit code 0
Processed:
0.010, SQL:
8
