/*
* 声明私有的底边长base和高height,同时声明公共方法访问私有变量。
* 提供类必要的构造器。
*/
public class TriAngle {
// 声明base跟height
private double base;
private double height;
public TriAngle() {
}
public TriAngle(double b, double h) {
base = b;
height = h;
}
public void setbase(double b) {
base = b;
}
public double getbase() {
return base;
}
public void setheight(double h) {
height = h;
}
public double getheight() {
return height;
}
}
/*
* 使用这些公共方法,计算三角形面积。
*/
public class TriAngleTest {
public static void main(String[] args) {
TriAngle p = new TriAngle();
p.setbase(3.1);
p.setheight(3.5);
System.out.println("三角形面积:" + p.getbase() * p.getheight());
}
}