Gui

**r035198x** · Jan 8 '07, 04:49 PM

Originally posted by outofmymind

(A) Complete the program by writing appropriate statements in the places indicated so that the program produces a GUI.
(Note: There are at most 8 statements missing in the main program and 2 import statements are missing.) what I did is indicated by the comments, there are some spaces that i couldnt fill up.

Code:

-----------
---------------
public class TempConvertGUI extends JFrame implements 					ActionListener{
		JTextField TF;
		JButton B;
		JPanel P;
		JLabel L,result;
		float temp;
		public TempConvertGUI(){
		------------------------------
		L=new JLabel("Enter Temp in Celsius");
		TF=new JTextField(5);
		------------------------------		
		result=new JLabel(" ");
		-----------------
		P.add(L);
		P.add(TF);
		P.add(B);
		P.add(result);
		this.getContentPane().add(P);
		------------------------------
		this.setSize(300,300);
		-------------
		}
		public void actionPerformed(ActionEvent arg0) {
		---------------
		temp=9*temp/5+32;
		--------------------		
		}
		public static void main(String[] args) {
		-----------------------
		-----------------------
		}

this is what i did:

import javax.swing.*;
import java.awt.event. ActionListener;
import java.awt.event. ActionEvent;

public class TempConvertGUI extends JFrame implements ActionListener{
JTextField TF;
JButton B;
JPanel P;
JLabel L,result;
float temp;
public TempConvertGUI( ){
B =new JButton("conver t"); //1
L=new JLabel("Enter Temp in Celsius");
TF=new JTextField(5);
P= new JPanel(); //2
result=new JLabel(" ");
L=new JLabel("Temp in Fahrienheit"); //3
P.add(L);
P.add(TF);
P.add(B);
P.add(result);
this.getContent Pane().add(P);
ActionListener listener = new ClickListener() ; //4
this.setSize(30 0,300);
B.addActionList ener(listener); //5
}
public void actionPerformed (ActionEvent arg0) {
//6
temp=9*temp/5+32;
// 7
}
public static void main(String[] args) {
TempConvertGUI TC = new TempConvertGUI( );//8
//9

}

Thanks for all your help

Code:

 import javax.swing.*;
import java.awt.event.*; 
public class TempConvertGUI extends JFrame implements ActionListener{
  JTextField TF;
  JButton B;
  JPanel P;
  JLabel L,result;
  float temp;
  public TempConvertGUI() {
   P = new JPanel();
   B =new JButton("convert");
   B.addActionListener(this);
   L=new JLabel("Enter Temp in Celsius");
   TF=new JTextField(5);
   result=new JLabel("  ");
   P.add(L);
   P.add(TF);
   P.add(B);
   P.add(result);
   this.getContentPane().add(P);
   this.setSize(300,300);
   setVisible(true);
  }
  public void actionPerformed(ActionEvent arg0) {
   double val = Double.parseDouble(TF.getText());
   double temp=9 * val/5+32;
   result.setText(val+" degrees is"+temp +"F");
   this.setVisible(true);
  }
  public static void main(String[] args) {
   new TempConvertGUI();
  }
 }

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