Wsrtjtyk

I'm a Java newbie and I have this question.

Can I pass a variable to a method multiple times without creating a new object?

For example, if I have a variable x which is the user input, another variable called m and a method were: if x is "h" then m is "example1" else if x is "f" m is "example2".

If I write:

String x = Scanner.next();

And I create the object passing the x variable, when I write,

System.out.println(obj.m);

If the input was h It will print out "example1"

But if write down this after what i showed up:

x = Scanner.next();

System.out.println(obj.m);

Whatever character I write down the output will be "example 1"

If I type "f" the first time the output will be "example2"
But the second system.out.println() will print "example2" eventually if I typed "h" the second time

So is it possible to pass a variable only one time with a value that changes over time without creating a new object?

If I understand your question correctly, then yes, you can pass a variable to a method multiple times without creating a new object. Let's say you create a class like this:

public class Test {

    public String m;



    public void testMethod(String x) {

        if (x.equals("h")) {

            m = "example1";

        } else if (x.equals("f")) {

            m = "example2";

        } else {

            m = "other";

        }

    }

}

If you created an object from this class in a main method and pass in different values of x as the argument for testMethod(), the value of m would change:

public class MainClass {

    public static void main(String args) {

        Test obj = new Test();



        String x = "h";

        obj.testMethod(x);

        System.out.println(obj.m); // prints example1



        x = "f";

        obj.testMethod(x);

        System.out.println(obj.m); // prints example2

    }

}

As I understood your question, I have added a solution that will create the object you mentioned one time and call the method inside it repeatedly as you enter values. This might help you

import java.util.Scanner;



public class A {

    public static void main(String args) {

        Scanner scanner = new Scanner(System.in);

        ClassOfYourObject object = new ClassOfYourObject();

        while (true) {

            System.out.print("Enter letter : ");

            String x = scanner.next();

            object.yourMethodToPrint(x);

        }

    }

}



class ClassOfYourObject {

    void yourMethodToPrint(String value) {

        if (value.equals("h")) {

            System.out.println("example1");

        } else if (value.equals("f")) {

            System.out.println("example2");

        } else {

            System.out.println("Invalid letter");

        }

    }

}