logpanel.java

dijkstra algorithm, need complile and building to jar file and run it.

package dijkstra;
import java.awt.BorderLayout;

import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class LogPanel extends JPanel
{

    JTextArea logTextArea ;
    StringBuffer logText;

    public LogPanel()
    {
        setLayout(new BorderLayout(10, 10));
        logTextArea = new JTextArea( 5, 2 );
        logTextArea.setEditable(false);
        JScrollPane scrollPane = new JScrollPane(logTextArea);
        add( "Center", scrollPane );
        
        logText = new StringBuffer();
        logText.append( "Log message starts here.\n" );
        logTextArea.setText( logText.toString() );
    }

    public void log( String str )
    {
        logText.append( str + "\n" );
        logTextArea.setText( logText.toString() );
    }

}