newby question

[virgil27]

Hello

I'm Virgil and I'm completly new to Java. Now I'm busy for my study.
I'm trying to create a GUI which makes it able for a user to give inpunt in a textfield.
These entrys are used to make a new variable. This variable is a command.
I don't know how I can use 2 strings 2 make 1 new variable wich is a command.

Example:

var1 = TABLE CLLI;ADD "string1" 4034 30 "string2"

This var1 has 2 be written to a output file.
How can I do this?
Can someone help me out?

Regards,

Virgil

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


public class StringTemplate extends JFrame
implements ActionListener {

private JTextField string1Field, string2Field;
private JTextField resultField;
private JLabel string1Label, string2Label;
private JLabel resultLabel;
private JButton saveButton;


public static void main(String[] args) {
StringTemplate frame = new StringTemplate();
frame.setSize(250, 500);
frame.createGUI();
frame.show();
}

private void createGUI() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container window = getContentPane();
window.setLayout(new FlowLayout());

string1Label = new JLabel("Cramer ID: ");
window.add(string1Label);

string1Field = new JTextField(20);
window.add(string1Field);

string2Label = new JLabel("NAW gegevens: ");
window.add(string2Label);

string2Field = new JTextField(20);
window.add(string2Field);


resultLabel = new JLabel("result is: ");
window.add(resultLabel);

resultField = new JTextField(20);
window.add(resultField);

saveButton = new JButton("Save");
window.add(saveButton);
saveButton.addActionListener(this);
}

public void actionPerformed(ActionEvent event) {
String result ="";
if (event.getSource() == saveButton) {
String string1 = string1Field.getText();
String string2 = string2Field.getText();
String Clli = "TABLE CLLI;ADD +string1 4034 30 +string2";
resultField.setText(Clli);
}
}
}

[virgil27]

I know now how to do it with the varaibles.
But know I only need to know how I can print this to a file.
Can someone help me with that?
Each string has to be on a new line


String string2 = string2Field.getText();
String string3 = string3Field.getText();
String string4 = string4Field.getText();
String string5 = string5Field.getText();
String clli = "TABLE CLLI;ADD " + string2+ " 4034 30 " + string3;
String trkgrp = "TABLE TRKGRP;ADD " + string2 + " PRA 0 PRAC NCRT ASEQ N $ $" ;
String trksgrp = "TABLE TRKSGRP;ADD " + string2 + " 0 DS1SIG ISDN 20 20 87Q931 2 Y STAND+ NETWORK PT_PT USER N UNEQ 255 N PRIMAP GWC " + string4 + " " + string5 + " 64K HDLC $ $";
String trkmem = "TABLE TRKMEM;ver off";


Regards,

[bnson]

Hi, The example simple can help you.

	public void writeFile()
	{
  		try
		{
	        // Create file 
        	FileWriter fstream = new FileWriter("D:\\out.txt");
        	BufferedWriter out = new BufferedWriter(fstream);

                // Writing data to file out.txt
        	out.write("Hello Java \\n");
        	out.newLine();   // Created a new line.
        	out.flush(); // Flushes this output stream and forces any buffered output bytes to be written out. 
        	out.write("Good Morning!");
        	out.newLine(); 
        	out.flush();  
        	out.write("Ohio!");        	

       		//Close the output stream
       		out.close();
  		}
  		catch (Exception e)
  		{
       		//Catch exception if any
      		System.err.println("Error: " + e.getMessage());
  		}
  	}

If you want to learn about the files in java, you should see "File I / O Basic"

[virgil27]

Thank you.
That's a big help.
I used this and my GUI is now ready for fase 1.

Is there also such a thing possible to make a telnet connection to a server with Java, and read the generated file with commands?

I normally would do this with Perl, but I cannot use this voor my study at the moment :(


Regards,