Question

public class maathclass {

    public void someNumbers() {
        int z = 4;

        System.out.println(z);

    }

}

//Trying to take variable z to add with answer from maathclass.java

import java.util.Scanner;

public class input {

public static void main (String args[]) {

        double fnum, snum, answer;
        Scanner userInput= new Scanner(System.in);
        maathclass mathObject = new maathclass();
        mathObject.someNumbers();


        System.out.println("Enter first number:");
        fnum = userInput.nextDouble();
        System.out.println("Enter second number:");
        snum = userInput.nextDouble();

// i want to add the variable z to the answer

        answer = fnum + snum;
        System.out.println("Answer:" + answer);
    }

}

Answer 1

你可以做到这一点

<强> maathclass.java

public class maathclass {
        private int z = 4

        public void setZ(int z) {
           this.z = z;
        }
        public int getZ(){
           return z;
        }
}

<强> input.java

import java.util.Scanner;

public class input {

public static void main (String args[]) {

        double fnum, snum, answer;
        Scanner userInput= new Scanner(System.in);
        maathclass mathObject = new maathclass();

        mathObject.setZ(4);


        System.out.println("Enter first number:");
        fnum = userInput.nextDouble();
        System.out.println("Enter second number:");
        snum = userInput.nextDouble();

// i want to add the variable z to the answer

        answer = fnum + snum + maathclass.getZ();
        System.out.println("Answer:" + answer);
    }

}

或者，如果您希望从z设置maathclass的值，则只需使用maathclass构造函数中的值对其进行初始化。

希望这会有所帮助。

如何将数字添加到另一个类公式以获得答案？

1 个答案: