How to clear a textfield in java using a button

How to clear a textfield in java using a button
JButton b = new JButton("Clear");
b. addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
textfield. setText("");
}
});

How do I clear a text area in J?
JTextArea0. selectAll(); JTextArea0. replaceSelection(""); This selects the entire textArea and then replaces it will a null string, effectively clearing the JTextArea.

How do you exit a button in Java?
If you want a JButton that closes the application, you would create the button: JButton Button = new JButton("Close");

How do I exit a java program without system exit?
Using return to end current method

If you just want to exit from current method, you can use return statement. return statement stops the execution of current method and return it to calling method. It is a reserved keyword which compiler already knows.