How to get the name of an object in Java?

Like this, a = new a (), how do I get a name? (from a) get the string "a"?

A JPanel contains some jtextfields, and a map contains the names of all jtextfields (variable names) I want to set the value of the map to the text of jtextfields

public void mapToJPanel(Map map,JPanel panel) {
    Component[] compArr = panel.getComponents();
    for (Component comp : compArr) {
        if (comp.getClass().getSimpleName().equals("JTextField")) {
            JTextField textField = (JTextField) comp;
            textField.setText(map.get(textField.getName()).toString());//getName() method
        }
    }
}

Accuss getname() method, I get null-_- I know that the getname () method is not used to get variable names I'm using NetBeans for Java Swing visual development, so I can't rewrite components (such as jtextfield)

Solution

You can use component Setname() names swing and AWT components