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Java - Why doesn't this JFrame work

Hi
I'm trying to do a Jframe that is yellow, and has a text area inside it to display results of  my program's calculations.

The JFrame seems to only consist of the JTextArea, even though the size and positioning are clearly within the frame.

What is going wrong below? Thanks

import java.awt.Color;
import java.awt.*;

import javax.swing.*;


public class FFframe extends JFrame{

	JTextArea ta;
	
	public FFframe() {
		
		this.setSize(900, 900);
		this.setLocation(0, 0);
		this.setBackground(Color.YELLOW);
		
		ta = new JTextArea();
		ta.setLocation(500, 500);
		ta.setSize(200, 200);
		ta.setBackground(Color.WHITE);
		ta.setText("ldksjvhlskjdvhlkasjdhvlkjshzvkljshljkvh");
		add(ta);
		
		this.setVisible(true);
		
		
		
	}
	
	
	public static void main(String[] args) {
		
		new FFframe();
	}

}

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beavoid
Asked:
beavoid
  • 2
2 Solutions
 
krakatoaCommented:
Use a LayoutManager and add the TextArea to it.
0
 
krakatoaCommented:
import java.awt.Color;
import java.awt.*;

import javax.swing.*;

 

public class FFframe extends JFrame{

	JTextArea ta;
	
	public FFframe() {
		
		this.setSize(900, 900);
		this.setLocation(0, 0);
		this.setLayout(new BorderLayout());
		this.getContentPane().setBackground(java.awt.Color.YELLOW);
		this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		
		ta = new JTextArea();
		ta.setLocation(500, 500);
		ta.setSize(200, 200);
		ta.setBackground(Color.WHITE);
		ta.setText("ldksjvhlskjdvhlkasjdhvlkjshzvkljshljkvh");
		this.add(ta,BorderLayout.WEST);
		
		this.setVisible(true);
		
		
		
	}
	
	
	public static void main(String[] args) {
		
		new FFframe();
	}

}

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0
 
beavoidAuthor Commented:
Thanks
0

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