Java realizes random problem 10 addition and subtraction calculation code examples within 10
- 2021-07-22 09:54:15
- OfStack
In this paper, we share the specific code of Java to achieve random problems, and calculate l within 10 ways of addition and subtraction for your reference. The specific contents are as follows
package com.swift;
import java.awt.Toolkit;
import java.util.Scanner;
public class PlusQuiz {
public static void main(String[] args) {
int i=0;
int number1=0,number2=0;
for(;;) {
number1=(int) (Math.random()*10);
number2=(int) (Math.random()*10);
// Additive part
System.out.println("What is "+number1+"+"+number2+"?");
Scanner scan=new Scanner(System.in);
int answer=scan.nextInt();
if(answer==number1+number2) {
System.out.println(" Tick ");
Toolkit.getDefaultToolkit().beep();
//System.out.println('\007');
}else {
System.out.println(" × ");
System.out.println(number1+"+"+number2+" should be "+(number1+number2));
}
// Subtraction part
if(number1<number2) {
int temp;
temp=number1;
number1=number2;
number2=temp;
}
System.out.println("What is "+number1+"-"+number2+"?");
int answer2=scan.nextInt();
if(answer2==number1-number2) {
System.out.println(" Tick ");
for(int time=0;time<6;time++)
Toolkit.getDefaultToolkit().beep();
}else {
System.out.println(" × ");
System.out.println(number1+"-"+number2+" should be "+(number1-number2));
}
// Judge the completion times of addition and subtraction
i++;
if(i==5) {
break;
}
}
}
}