01.电表管理package aaa;
package disici;
public class dianbiao {
private int last;
private int now;
public dianbiao(){
}
public dianbiao(int last,int now) {
this.last=last;
this.now=now;
}
public int getlast(int last) {
return last;
}
public int getnow(int now) {
return now;
}
public void setlast(int last) {
this.last=last;
}
public void setnow(int now) {
this.now=now;
}
public void print(){
System.out.println("上月用电度数："+last+"本月用电度数："+this);
}
}
01.1电表测试
package disici;
import java.util.*;
public class dianbiaotest {
public static void main(String []args) {
dianbiao e1=new dianbiao();
Scanner n=new Scanner(System.in);
System.out.println("请输入上月的用电情况：");
int last=n.nextInt();
n.nextLine();
System.out.println("请输入本月的用电情况：");
int now=n.nextInt();
e1.setlast(last);
e1.setnow(now);
int mon=0;
mon=(int) (now*1.2);
System.out.println("本月的电费为："+mon);
}
}
02.圆柱体
package disici;
import java.util.*;
public class yuanzhu {
private int r;
private int h;
public yuanzhu(int r,int h){
this.h=h;
this.r=r;
}
public void setr(int r) {
this.r=r;
}
public int getr() {
return r;
}
public void seth(int h) {
this.h=h;
}
public int geth() {
return h;
}
public static double s(int r) {
return r*r*3.14;
}
public static double V(int r,int h) {
return r*r*3.14*h;
}
public static void main(String []args) {
System.out.println("请输入半径：");
Scanner in=new Scanner(System.in);
int r=in.nextInt();
in.nextLine();
System.out.println("请输入高：");
int h=in.nextInt();
in.nextLine();
yuanzhu e1=new yuanzhu(r,h);
e1.setr(r);
e1.seth(h);
System.out.println("底面积："+s(r)+"体积："+V(r, h));
}
}
3.运算法则
package disici;
import java.util.*;
public class yunsuan {
private int a;
private int b;
public yunsuan(int a,int b){
this.a=a;
this.b=b;
}
public void seta(int a) {
this.a=a;;
}
public int geta(){
return a;
}
public void setb(int b) {
this.b=b;
}
public int getb() {
return b;
}
public static int jia(int a,int b) {
return a+b;
}
public static int jian(int a,int b) {
return a-b;
}
public static int cheng(int a,int b) {
return a*b;
}
public static int chu(int a,int b) {
return a/b;
}
public static void main(String []args) {
System.out.println("请输入数值1：");
Scanner in=new Scanner(System.in);
int a=in.nextInt();
in.nextLine();
System.out.println("请输入数值2：");
int b=in.nextInt();
in.nextLine();
yunsuan e1=new yunsuan(a,b);
e1.seta(a);
e1.setb(b);
System.out.println("加："+jia(a,b)+"减："+jian( a, b)+"乘："+cheng(a, b)+"除："+chu(a,b));
}
}