Java Class and Variable Problem

Question

I created a class, Inside it I need to call some methods but it has to be what is typed inside the Jtextpanel, someone knows how to do?

This is my class Pick:

    public class Escolha {
public static String hey; //NAO EXISTE NO CÓDIGO É SO PRA DAR SENTINDO PRO PROXIMO CÓDIGO
    public static void Ola() {  


try {  

    Robot robot = new Robot();  
    robot.delay(5000);  
    robot.keyPress(KeyEvent.VK_O);  
    robot.keyPress(KeyEvent.VK_L);  
    robot.keyPress(KeyEvent.VK_A);    

} catch (AWTException e) {  
    e.printStackTrace();  
}
}`       

public static void Tchau() {  

    try {  

        Robot robot = new Robot();  
        robot.delay(5000);  
        robot.keyPress(KeyEvent.VK_T);  
        robot.keyPress(KeyEvent.VK_C);  
        robot.keyPress(KeyEvent.VK_H);  
        robot.keyPress(KeyEvent.VK_A);
        robot.keyPress(KeyEvent.VK_U);  

    } catch (AWTException e) {  
        e.printStackTrace();  
    }  
}`

In my program I have a Button:

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    Escolha.ola();
}                                        

It works, but I wanted to put a jtextfield that which method will be executed Ex1:(How it’s working)

Ex2:(What I want him to do) Here he reads Jtextfield and executes the Choice.Hello Why is Written Hello in the box

Ex3:(What I want him to do) Here he reads the Jtextfield and executes the Choice.Bye Why It’s Written Goodbye in the box

A solution would be :

String t1 = jTextField1.getText();
if(t1=="Ola")
{
Escolha.ola();
}
if(t1=="tchau")
{
    Escolha.tchau;
}

But did not want to create Several if’s, would not have another way?

Answer 1

Hi. Yes, there is.

I created a class to show an example:

package minhaaplicacao;

import javax.swing.Joptionpane;

public class Minhaclasse { public void nameMensage(String msg){ Joptionpane.showMessageDialog(null, msg); } }

And this is the method that calls the "calling method" in the class "Minhaclasse ":

 public void chamarEsteMetodo(String classe, String metodo){
        try {
            Class minhaClasse = Class.forName(classe);
            Object objDaMinhaClasse = minhaClasse.newInstance();
            Method meuMetodo = objDaMinhaClasse.getClass().getMethod(metodo, String.class);
            meuMetodo.invoke(objDaMinhaClasse,"Minha mensagem");
        } catch (ClassNotFoundException | NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException | InstantiationException ex) {
            System.err.println(ex);
        }
    }

With this, you can put as many parameters as you want.