Example usage for java.awt TextArea TextArea

Introduction

In this page you can find the example usage for java.awt TextArea TextArea.

Prototype

public TextArea(String text, int rows, int columns) throws HeadlessException 

Source Link

Document

Constructs a new text area with the specified text, and with the specified number of rows and columns.

Usage

From source file:FileViewer.java

/**
 * The real constructor. Create a FileViewer object to display the specified
 * file from the specified directory/*w w w  . j a va  2  s .c  o  m*/
 */
public FileViewer(String directory, String filename) {
    super(); // Create the frame

    // Destroy the window when the user requests it
    addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            dispose();
        }
    });

    // Create a TextArea to display the contents of the file in
    textarea = new TextArea("", 24, 80);
    textarea.setFont(new Font("MonoSpaced", Font.PLAIN, 12));
    textarea.setEditable(false);
    this.add("Center", textarea);

    // Create a bottom panel to hold a couple of buttons in
    Panel p = new Panel();
    p.setLayout(new FlowLayout(FlowLayout.RIGHT, 10, 5));
    this.add(p, "South");

    // Create the buttons and arrange to handle button clicks
    Font font = new Font("SansSerif", Font.BOLD, 14);
    Button openfile = new Button("Open File");
    Button close = new Button("Close");
    openfile.addActionListener(this);
    openfile.setActionCommand("open");
    openfile.setFont(font);
    close.addActionListener(this);
    close.setActionCommand("close");
    close.setFont(font);
    p.add(openfile);
    p.add(close);

    this.pack();

    // Figure out the directory, from filename or current dir, if necessary
    if (directory == null) {
        File f;
        if ((filename != null) && (f = new File(filename)).isAbsolute()) {
            directory = f.getParent();
            filename = f.getName();
        } else
            directory = System.getProperty("user.dir");
    }

    this.directory = directory; // Remember the directory, for FileDialog
    setFile(directory, filename); // Now load and display the file
}

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