I want to navigate the content of text field from one class to another and viceversa through button but when I am getting the text from first class I am getting null value.please help me..here is the code
import javax.swing.*;
import java.awt.event.*;
class Frame1 extends JFrame
{
private JButton btn1;
private JTextField tf1;
public Frame1()
{
setLayout(null);
setSize(500,500);
tf1=new JTextField();
tf1.setBounds(100,100,100,30);
btn1=new JButton("click for second frame");
btn1.setBounds(100,250,100,30);
btn1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e)
{
String text=tf1.getText();
new Frame2(text);
}
});
add(tf1);
add(btn1);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public JTextField getTextField1()
{
return tf1;
}
} class Frame2 extends JFrame { private JButton btn2; private JTextField tf2; private String secondtext; public Frame2() {
}
public Frame2(String firsttext)
{
setLayout(null);
setSize(500,500);
tf2=new JTextField();
tf2.setText(firsttext);
secondtext=tf2.getText();
tf2.setBounds(100,100,100,30);
btn2=new JButton("click for first frame");
btn2.setBounds(100,250,100,30);
btn2.addActionListener(new MyActionListener());
add(tf2);
add(btn2);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public JTextField getTextField2()
{
return tf2;
}
public String getText()
{
return secondtext;
}
} class MyActionListener extends Frame1 implements ActionListener { private String text; private JTextField tf1; private JTextField tf2; private Frame2 frame2; public MyActionListener() {
super();
frame2=new Frame2();
text=frame2.getText();
modify();
}
public void actionPerformed(ActionEvent e)
{
new MyActionListener();
}
public void modify()
{
tf1=super.getTextField1();
tf2=frame2.getTextField2();
tf1.setText(text);
}
}
class MyFrame
{
public static void main(String args[])
{
new Frame1();
} }
try to do like the following :
import javax.swing.*;
import java.awt.event.*;
class Frame1 extends JFrame
{
private JButton btn1;
private JTextField tf1;
public Frame1()
{
setLayout(null);
setSize(500,500);
tf1=new JTextField();
tf1.setBounds(100,100,100,30);
btn1=new JButton("click for second frame");
btn1.setBounds(100,250,200,30);
btn1.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
String text=tf1.getText();
new Frame2(text);
}
});
add(tf1);
add(btn1);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public Frame1(String text1)
{
setLayout(null);
setSize(500,500);
tf1=new JTextField();
tf1.setText(text1);
tf1.setBounds(100,100,100,30);
btn1=new JButton("click for second frame");
btn1.setBounds(100,250,200,30);
btn1.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
String text=tf1.getText();
new Frame2(text);
}
});
add(tf1);
add(btn1);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public JTextField getTextField1()
{
return tf1;
}
}
Continue...
import javax.swing.*; import java.awt.*; import java.awt.event.*; class Frame2 extends JFrame { private JButton btn2; private JTextField tf2; private String secondtext;
private Frame1 frame1;
public Frame2()
{
}
public Frame2(String firsttext)
{
setLayout(null);
setSize(500,500);
tf2=new JTextField();
tf2.setText(firsttext);
//secondtext=tf2.getText();
tf2.setBounds(100,100,100,30);
btn2=new JButton("click for first frame");
btn2.setBounds(100,250,200,30);
//btn2.addActionListener(new MyActionListener());
btn2.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent ae)
{
secondtext=tf2.getText();
frame1 = new Frame1(secondtext);
}
});
add(tf2);
add(btn2);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public JTextField getTextField2()
{
return tf2;
}
public String getSecondText()
{
return secondtext;
}
}
Continue...
class MyFrame { public static void main(String args[]) { new Frame1(); } }
Thanks.