第二章——上機
第五題
package jishiti;
import java.util.Scanner;
public class Dierzhangsi {
public static void main(String[] args) {
int txujg = 245; //T恤價格
int wqiujg = 570; //網球鞋價格
int wqiupjg = 320; //網球拍價格
Scanner input = new Scanner(System.in); //使用者商品折扣
System.out.println("請輸入折扣:"); //計算商品享受折扣後的價格
double shangp =input.nextDouble(); // 商品折扣
double txuzk = txujg*shangp; // T恤折扣價
double wqiuzk = wqiujg*shangp; // 網球鞋折扣價
double wqiupzk = wqiupjg*shangp; // 網球拍折扣價
boolean qwe =txuzk<100; // 判斷商品折後價是否低於100
boolean asd =wqiuzk<100;
boolean zxc =wqiupzk<100;
System.out.println("T恤折扣價低於100嗎?" +qwe); //輸出
System.out.println("網球鞋折扣價低於100嗎?" +asd);
System.out.println("網球鞋折扣價低於100嗎?" +zxc);
}
}
第四題
package com.bdqn.dome;
import java.util.Scanner;
public class Testdd {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("請輸入一個四位數子的會員號:");
int card = scanner.nextInt();
int a = card / 1000;
int b = card % 1000 / 100;
int c = card % 100 / 10;
int d = card % 10;
int sum = a + b +c +d;
System.out.println("會員卡號"+ card + "各位之和:" + sum);
boolean isLuck=sum>20;
System.out.println("是幸運客戶嗎?" +isLuck);
}
}
第三題
package com.bdqn.dome;
import java.util.Scanner;
public class Bsts {
public static void main(String[] args) {
int benj; //本金
System.out.println("請輸入本金:");
Scanner input = new Scanner(System.in);
benj = input.nextInt();
int niany = 1; //存一年
int nianer =2; //存倆年
int niansan =3; //存三年
int nianwu =5; // 存五年
double nlvy = 0.0225; //一年的年利率
double nlver =0.027; //兩年的年利率
double nlvsan =0.0324; //三年的年利率
double nlvwu =0.036; //五年的年利率
double lixi =(benj * nlvy * niany); //一年的利息
double lixier =(benj * nlver * nianer); //兩年的利息
double lixisan =(benj * nlvsan * niansan); //三年的利息
double lixiwu = (benj * nlvwu * nianwu); //五年的利息
System.out.println("\n存取一年後的本息是:" +(lixi+benj));
System.out.println("\n存取倆年後的本息是:" +(lixier+benj));
System.out.println("\n存取三年後的本息是:" +(lixisan+benj));
System.out.println("\n存取五年後的本息是:" +(lixiwu+benj));
}
}
第二題
package com.bdqn.dome;
public class Test {
public static void main(String[] args) {
System.out.println("\t*****消費單*****");
System.out.println("\n購買物品\t單價\t個數\t金額");
System.out.println("\nT恤\t¥245\t2\t¥490");
System.out.println("\n網球鞋\t¥500\t1\t¥570");
System.out.println("\n網球怕\t¥320\t1\t¥320");
System.out.println("\n\n折扣:\t8折");
int tixie =245; //T恤價格
int wangx =570; //網球鞋價格
int wangp =320; //網球拍
int tshu =2; //T恤數量
int wshu =1; //網球鞋數量
int pshu =1; //網球拍數量
int shij =1500; //實際繳費
double zqia = 396.0; //找錢
double zjine = 1104.0; //消費總金額
double zhek = 0.8; //8折
double xfzje =(shij-zqia);
System.out.println("消費總金額:"+xfzje);
double sjjf = (zjine+zqia);
System.out.println("實際繳費:"+sjjf);
double zaoq = (shij-zjine);
System.out.println("找錢"+zaoq);
double jif =(tixie * tshu+wangx * wshu+wangp * pshu) * zhek;
int jifen = (int)zjine*3/100;
System.out.println("本次購物所獲積分是:"+jifen);
}
}
第一題
package jishiti;
public class Dierzhang {
public static void main(String[] args) {
int txu =245;
int wqiu =570;
int wpai =320;
int txusm =2;
int wqiusm =1;
int wpaism =1;
double zhek =0.8;
double xiaof =(txu * txusm + wqiu * wqiusm + wpai * wpaism)*zhek;
System.out.println("消費總金額:" +xiaof);
}
}