第三章 课后作业
上机练习2:录入会员信息
package com.bdqn.dome;
import java.util.Scanner;
public class dome3 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("MySopping管理系统<客户信息<添加客户信息\n");
System.out.print("请输入会员号");
int vipnum =input.nextInt();
System.out.print("请输入会员生日");
String vipbdy = input.next();
System.out.print("请输入会员积分");
int teg = input.nextInt();
if(vipnum<1000||vipnum>9999) {
System.out.println("输入有误请重新输入。");
}else {
System.out.println("您录入的会员信息是\n"+vipnum+"\t"+vipbdy+"\t"+teg);
}
System.out.println("程序结束");
}
}
上机练习4:计算会员折扣
package com.excellence.action;
import java.util.Scanner;
上机练习2:录入会员信息
package com.bdqn.dome;
import java.util.Scanner;
public class dome3 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("MySopping管理系统<客户信息<添加客户信息\n");
System.out.print("请输入会员号");
int vipnum =input.nextInt();
System.out.print("请输入会员生日");
String vipbdy = input.next();
System.out.print("请输入会员积分");
int teg = input.nextInt();
if(vipnum<1000||vipnum>9999) {
System.out.println("输入有误请重新输入。");
}else {
System.out.println("您录入的会员信息是\n"+vipnum+"\t"+vipbdy+"\t"+teg);
}
System.out.println("程序结束");
}
}
上机练习4:计算会员折扣
package com.excellence.action;
import java.util.Scanner;
public class CalcDiscounnt {
public static void main(String[] args) {
Scanner input=new Scanner(System.in);
System.out.print("请输入会员积分:");
int integral =input.nextInt();
if (integral>=8000) {
System.out.println("六折");
}
else if (integral>=4000) {
System.out.println("七折");
}
else if (integral>=2000) {
System.out.println("八折");
}
else {
System.out.println("九折");
}
}
public static void main(String[] args) {
Scanner input=new Scanner(System.in);
System.out.print("请输入会员积分:");
int integral =input.nextInt();
if (integral>=8000) {
System.out.println("六折");
}
else if (integral>=4000) {
System.out.println("七折");
}
else if (integral>=2000) {
System.out.println("八折");
}
else {
System.out.println("九折");
}
}
}
简答题
第一题
package tz1;
简答题
第一题
package tz1;
import java.util.Scanner;
public class demo5 {
public static void main(String[] args) {
String name ="青";
int pas=123;
Scanner input=new Scanner(System.in);
System.out.println("请输入你都用户名:");
name=input.next();
System.out.println("请输入你的密码:");
pas=input.nextInt();
if (name.equals("青")&&pas==123) {
System.out.print("欢迎你,青");
}
else {
System.out.print("对不起,你不是青");
}
}
public static void main(String[] args) {
String name ="青";
int pas=123;
Scanner input=new Scanner(System.in);
System.out.println("请输入你都用户名:");
name=input.next();
System.out.println("请输入你的密码:");
pas=input.nextInt();
if (name.equals("青")&&pas==123) {
System.out.print("欢迎你,青");
}
else {
System.out.print("对不起,你不是青");
}
}
}
第二题
package tz1;
import java.util.Scanner;
public class demo6 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("请输入年龄:");
int age = input.nextInt();
System.out.print("请输入性别:");
String gender = input.next();
if (age>=5 && gender.equals("男") ) {
System.out.println("可以搬动桌子");
}
}
第二题
package tz1;
import java.util.Scanner;
public class demo6 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("请输入年龄:");
int age = input.nextInt();
System.out.print("请输入性别:");
String gender = input.next();
if (age>=5 && gender.equals("男") ) {
System.out.println("可以搬动桌子");
}
}
}
第三题
package tz1;
import java.util.Scanner;
第三题
package tz1;
import java.util.Scanner;
public class demo7 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("请输入3个整数:");
int a = input.nextInt();
int b = input.nextInt();
int c = input.nextInt();
if (a < b && a < c) {
if (b < c) {
System.out.print(a +b +c);
}
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("请输入3个整数:");
int a = input.nextInt();
int b = input.nextInt();
int c = input.nextInt();
if (a < b && a < c) {
if (b < c) {
System.out.print(a +b +c);
}
else {
System.out.print(a + "," + c + "," + b);
}
} else if (b < a && b < c) {
if (a < c) {
System.out.println(b + "," + a + "," + c);
} else {
System.out.print(b + "," + c + "," + a);
}
} else if (b < a && b < c) {
if (a < c) {
System.out.println(b + "," + a + "," + c);
} else {
System.out.print(b + "," + c + "," + a);
}
} else {
if (a < b) {
System.out.print(c + "," + a + "," + b);
} else {
System.out.print(c + "," + b + "," + a);
}
}
}
}
第四题
package tz1;
import java.util.Scanner;
public class demo8 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("请输入一个整数:");
int age= input.nextInt();
if (age/3==0 && age/5==0) {
System.out.println("该整数是3或5的倍数");}
else {
System.out.println("该数不能被3或5中的任何一个整除");
}
}
}
第五题
package tz1;
import java.util.Scanner;
} else {
if (a < b) {
System.out.print(c + "," + a + "," + b);
} else {
System.out.print(c + "," + b + "," + a);
}
}
}
}
第四题
package tz1;
import java.util.Scanner;
public class demo8 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("请输入一个整数:");
int age= input.nextInt();
if (age/3==0 && age/5==0) {
System.out.println("该整数是3或5的倍数");}
else {
System.out.println("该数不能被3或5中的任何一个整除");
}
}
}
第五题
package tz1;
import java.util.Scanner;
public class dome12 {
public static void main(String[] args) {
System.out.println("请输入成绩:");
Scanner input = new Scanner(System.in);
int score = input.nextInt();
if (score==100) {
System.out.println("父亲给她买车");
}else if (score>=90) {
System.out.println("母亲给她买笔记本电脑");
}else if (score>=60) {
System.out.println("母亲给她买手机");
}else {
System.out.println("没有礼物");
}
public static void main(String[] args) {
System.out.println("请输入成绩:");
Scanner input = new Scanner(System.in);
int score = input.nextInt();
if (score==100) {
System.out.println("父亲给她买车");
}else if (score>=90) {
System.out.println("母亲给她买笔记本电脑");
}else if (score>=60) {
System.out.println("母亲给她买手机");
}else {
System.out.println("没有礼物");
}
}
}
第六题
package tz1;
package tz1;
import java.io.OutputStreamWriter;
import java.util.Scanner;
import java.util.Scanner;
import org.omg.CORBA_2_3.portable.OutputStream;
public class demo9 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int plane = 5000;
System.out.println("请输入您要出行的月份:1~12");
int Month = input.nextInt();
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int plane = 5000;
System.out.println("请输入您要出行的月份:1~12");
int Month = input.nextInt();
System.out.println("请问您选择头等舱还是经济舱?头等舱输入1,经济舱输入2");
int choice = input.nextInt();
// 条件一
if (Month >= 4 && Month <= 10) {// 如果月份大于或等于4并且小于或等于10
// 条件二
if (choice == 1) {// 选择1
// 代码一
System.out.println(plane * 0.9);// 票价为5000*0.9
int choice = input.nextInt();
// 条件一
if (Month >= 4 && Month <= 10) {// 如果月份大于或等于4并且小于或等于10
// 条件二
if (choice == 1) {// 选择1
// 代码一
System.out.println(plane * 0.9);// 票价为5000*0.9
} else {
// 代码二
System.out.println(plane * 0.8);
}
}
// 代码二
System.out.println(plane * 0.8);
}
}
if (Month < 4 || Month > 10) {// 如果月份小于4或者大于10
if (choice == 1)// 选择1
{
System.out.println(plane * 0.5);
} else {
System.out.println(plane * 0.4);
}
}
if (choice == 1)// 选择1
{
System.out.println(plane * 0.5);
} else {
System.out.println(plane * 0.4);
}
}
}
}