package bbb;
public class aaa{
private float a; private float b; public aaa(){ }
public aaa(float a,float b){
this.a=a; this.b=b; }
public float geta(){ return a; }
public void seta(int a){
this.a=a; } public float getb(){
return b;
}
public void setb(int b){
this.b=b; } public void printab(){
System.out.println("上月电表读数为："+a+",本月电表读数为："+b); }
public void printm(){ float m; m=(float) ((b-a)*1.2);
System.out.println("电费为："+m);
}
}
package bbb;
public class textaaa {
public static void main(String[] args) {
aaa p1 = new aaa();
p1.seta(800);
p1.setb(1000);
p1.printab();
p1.printm();
aaa p2 =new aaa();
p2.seta(1000);
p2.setb(1300);
p2.printab();
p2.printm();
}
}
运行结果：
上月电表读数为：800.0,本月电表读数为：1000.0
电费为：240.0
上月电表读数为：1000.0,本月电表读数为：1300.0
电费为：360.0
原文：https://www.cnblogs.com/YShen0/p/10801843.html