return

main.java

package com.alex.methods;

public class JavaApplication1 {

    static double megoCalc(double first, char operation, double second) {
        switch (operation) {
            case '+':
                return first + second;
            case '-':
                return first - second;
            case '*':
                return first * second;
            case '/':
                return second != 0 ? first / second : 0;
            case '^':
                return Math.pow(first, second);
            default:
                return -1;
        }
    }

    public static void main(String[] args) {
        double result = megoCalc(5, '^', 2);
        System.out.println(result); // 25
    }
}