小学数学口算 java
时间: 2023-09-11 14:11:14 浏览: 46
您好,口算练习可以用Java编写,以下是一个小学加减法的口算练习Java代码示例:
```java
import java.util.Random;
import java.util.Scanner;
public class MathPractice {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Random random = new Random();
int correctCount = 0;
int totalCount = 0;
while (true) {
int a = random.nextInt(100);
int b = random.nextInt(100);
int operator = random.nextInt(2);
int result;
String operatorStr;
if (operator == 0) {
result = a + b;
operatorStr = "+";
} else {
result = a - b;
operatorStr = "-";
}
System.out.print(a + " " + operatorStr + " " + b + " = ");
int answer = scanner.nextInt();
totalCount++;
if (answer == result) {
correctCount++;
System.out.println("恭喜你,答对了!");
} else {
System.out.println("很遗憾,答错了,正确答案是:" + result);
}
System.out.println("你已经回答了 " + totalCount + " 道题,其中有 " + correctCount + " 道题回答正确。");
System.out.print("是否继续练习?(输入y继续,其他任意键退出):");
String choice = scanner.next();
if (!choice.equals("y")) {
break;
}
}
System.out.println("你一共回答了 " + totalCount + " 道题,其中有 " + correctCount + " 道题回答正确。");
}
}
```
这个代码会随机生成加法或减法的算式,然后让用户输入答案,给出正确或错误的提示,并统计答题情况。您可以根据需要进行修改和优化。
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