用Java将表达式(a+b)%b<2逻辑与上表达式a>b*b再逻辑或上表达式a*b<12,最后整个表达式取逻辑非,在控制台输出最后整个表达式的输出结果。
时间: 2024-09-27 07:09:03 浏览: 38
在Java中,你可以使用`java.util.Scanner`从控制台获取用户输入并进行数学运算。首先,你需要编写一个函数来解析和计算这个复杂的逻辑表达式。以下是一个步骤说明:
1. 创建一个`Scanner`对象来读取用户输入(假设已经获取了变量a和b的值):
```java
import java.util.Scanner;
public class Main {
Scanner scanner = new Scanner(System.in);
double a, b;
}
```
2. 定义一个方法来计算整个表达式的逻辑非:
```java
private boolean evaluateExpression(double a, double b) {
// (a + b) % b < 2 && (a > b * b) || (a * b < 12)
boolean condition1 = (a + b) % b < 2;
boolean condition2 = a > Math.pow(b, 2);
boolean condition3 = a * b < 12;
// 使用位运算符&、|、^分别表示逻辑与、或、非
return !((condition1 && condition2) || condition3);
}
```
3. 获取用户输入并计算结果:
```java
public static void main(String[] args) {
Main main = new Main();
System.out.println("请输入a的值:");
a = main.scanner.nextDouble();
System.out.println("请输入b的值:");
b = main.scanner.nextDouble();
if (main.evaluateExpression(a, b)) {
System.out.println("最终表达式的逻辑非结果: true");
} else {
System.out.println("最终表达式的逻辑非结果: false");
}
main.scanner.close(); // 关闭扫描器
}
```
运行上述程序后,控制台会提示用户输入a和b的值,并显示最终表达式的逻辑非结果。
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