用java语言编写一个计算器的程序?

最新问答

• 三石太保

  import java.util.*;
  
  public class Test {
  
  public static void main(String[] args) {
  
  Scanner input = new Scanner(System.in);
  
  System.out.println("*****************简易计算器****************");
  System.out.println("*\t\t\t\t\t*");
  System.out.println("* 使用说明： 1.加法 2.减法 3.乘法 4.除法 *");
  System.out.println("*\t\t\t\t\t*");
  System.out.println("*****************************************");
  
  for(int i=0;i<100;i++){
  System.out.print("\n请选择运算规则：");
  int num = input.nextInt();
  switch(num){
  case 1:
  System.out.println("\n******你选择了加法******\n");
  System.out.print("请输入第1个加数:");
  int jiashu1 = input.nextInt();
  System.out.print("请输入第2个加数:");
  int jiashu2 = input.nextInt();
  System.out.println("运算结果为:" + jiashu1 + " + " + jiashu1 + " = " + (jiashu1 + jiashu2));
  break;
  case 2:
  System.out.println("\n******你选择了减法******\n");
  System.out.print("请输入被减数:");
  int jianshu1 = input.nextInt();
  System.out.print("请输入减数:");
  int jianshu2 = input.nextInt();
  System.out.println("运算结果为:" + jianshu1 + " - " + jianshu2 + " = " + (jianshu1 - jianshu2));
  break;
  case 3:
  System.out.println("\n******你选择了乘法******\n");
  System.out.print("请输入第1个因数:");
  int chengfa1 = input.nextInt();
  System.out.print("请输入第2个因数:");
  int chengfa2 = input.nextInt();
  System.out.println("运算结果为:" + chengfa1 + " * " + chengfa2 + " = " + (chengfa1 * chengfa2));
  break;
  case 4:
  System.out.println("\n******你选择了除法******\n");
  System.out.print("请输入被除数:");
  double chufa1 = input.nextInt();
  System.out.print("请输入除数:");
  double chufa2 = input.nextInt();
  System.out.println("运算结果为:" + chufa1 + " / " + chufa2 + " = " + (chufa1 / chufa2) + " 余 " + (chufa1 % chufa2));
  break;
  default:
  System.out.println("\n你的选择有错，请重新选择!");
  break;
  }
  
  }
  }
  
  }

  浏览 294赞 113时间 2023-02-18
• 必须匿名

  给你我自己做的 可直接运行 要是你没好jar打开方式的话 就去命令行打开
  

  浏览 265赞 150时间 2023-02-10
• 雪绒花05

  我这有一套源，你可以看看可不可用得上

  浏览 449赞 69时间 2023-01-20