java实验四——测试梯形类
package hello; public class TestTixing { public static void main(String[] args) { // TODO Auto-generated method stub Tixing t1=new Tixing(10,20,10); System.out.println(t1.upper+" "+t1.lower+" "+t1.high); System.out.println(t1.getArea()); System.out.println(t1.toString()); t1.setHigh(100); System.out.println(t1.toString()); Tixing t2=new Tixing(20,40,20); System.out.println(t2.toString()); t2=t1; System.out.println(t2.toString()); System.out.println(t1.toString()); t1.setHigh(50); System.out.println(t2.toString()); System.out.println(t1.toString()); } } class Tixing { double upper,lower,high; public Tixing() { } public Tixing(double upper, double lower, double high) { this.upper = upper; this.lower = lower; this.high = high; } public double getUpper() { return upper; } public void setUpper(double upper) { this.upper = upper; } public double getLower() { return lower; } public void setLower(double lower) { this.lower = lower; } public double getHigh() { return high; } public void setHigh(double high) { this.high = high; } public double getArea(){ return (upper+lower)*high/2; } public String toString() { return "Tixing [upper=" + upper + ", lower=" + lower + ", high=" + high + "]"; } }