CODEWITHSUNDEEP
java
noleavename
noleavename

Reputation: 83

Check Button is Click in different class in Java

i had two classes, one is Main.java another is Button.java

So in Main.java, i need to confirm while Jbutton in Button.java is clicked, then Main.java will do something

in Button.java

public void actionPerformed(ActionEvent e) {

        if(e.getSource()==Jsend)
        {
            String userinput = Jusertxt.getText();
            setUserText(userinput);//setUserText is a method for Main.java can get a String from user input.
            Jusertxt.setText("");
        }
    }

what is the statement i need to write in Main.java to check button is clicked in Button.java?

here is some code in Main.java

while(true){

if(//in here i need to ensure button is clicked){
}   }

Upvotes: 0

Views: 1108

Answers (2)

mr mcwolf
mr mcwolf

Reputation: 2849

To receive notification button is pressed, you must register listener in Main.java. With it you can synchronize a local variable to store the status of the button (if it is clicked). This variable can use later to determine whether the button is pressed (once).

Edit Another option is the variable part of Button.java and to implement a public method isClicked()

Upvotes: 1

kxdan
kxdan

Reputation: 187

Put a boolean value within the button, use a getter to retrieve the value of the boolean e.g

Example : 

 //Within main
 Button button = new Button(); // I wouldn't recommend using button as a 
 class name by the way, will get very confusing
 if(button.getPressed){
 // do stuff
 }

Your button code:

public void actionPerformed(ActionEvent e) {

    if(e.getSource()==Jsend)
    {
        String userinput = Jusertxt.getText();
        setUserText(userinput);//setUserText is a method for Main.java can get a String from user input.
        Jusertxt.setText("");
        isPressed = true;
    }
}



 public boolean getPressed(){
 return isPressed;
 }

Upvotes: 1

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