枚举类四则运算java代码实现

以下是一个简单的枚举类四则运算的Java代码实现：

import java.util.Random;

public class MathOperation {
  
  // 定义枚举类运算符
  private enum Operator {
    ADDITION("+"),
    SUBTRACTION("-"),
    MULTIPLICATION("*"),
    DIVISION("/");
    
    private final String symbol;
    
    Operator(String symbol) {
      this.symbol = symbol;
    }
    
    public String getSymbol() {
      return symbol;
    }
  }
  
  // 生成随机整数
  private static int getRandomInt(int min, int max) {
    Random random = new Random();
    return random.nextInt(max - min + 1) + min;
  }
  
  // 生成随机运算符
  private static Operator getRandomOperator() {
    Operator[] operators = Operator.values();
    int index = getRandomInt(0, operators.length - 1);
    return operators[index];
  }
  
  // 执行四则运算
  public static int execute() {
    int num1 = getRandomInt(0, 100);
    int num2 = getRandomInt(0, 100);
    Operator operator = getRandomOperator();
    
    switch (operator) {
      case ADDITION:
        return num1 + num2;
      case SUBTRACTION:
        return num1 - num2;
      case MULTIPLICATION:
        return num1 * num2;
      case DIVISION:
        return num1 / num2;
      default:
        throw new IllegalStateException("Invalid operator: " + operator);
    }
  }
  
  public static void main(String[] args) {
    for (int i = 0; i < 10; i++) {
      int result = execute();
      System.out.println(result);
    }
  }
}

该代码定义了一个枚举类运算符，通过随机生成两个整数和一个运算符执行四则运算。运行代码，将输出10个随机的运算结果。