How to use TextArea class?

[Protectors]

Hi All,

I am BSc(IT) student, and currently learning the java language. I am getting troubled while referring the TextArea class. I don't know anything about the methods and constructors of TextArea class of the java language. If you know anything about the TextArea class then please try to share it with me along with suitable example for the same. I would greatly appreciate your help.

[kelfro]

Hi friend,

A TextArea class object is a multi-line region that displays text. It can be set to allow editing or to be read-only. This java class is originally taken from the package known as 'java.awt.TextComponent'. This class implemenst four interfaces namely: Accessible, ImageObserver, MenuContainer, Serializable. The TextArea class of java basically extends the TextComponent.

[Zecho]

I suggest you to study following constructors of TextArea class:

• TextArea(String txt, int rw, int clmn, int scrlbr)
• TextArea(String txt, int rw, int clmn)
• TextArea(String txt)
• TextArea(int rw, int clmn)

[Reegan]

Hello friend,

I hope something below code may help you to know about TextArea class:

import java.applet.Applet;
import java.awt.Graphics;
import java.awt.TextArea;

public class TextAreaDM extends Applet {
  TextArea display = new TextArea(1, 90);
  int paintCount1 = 0;
  String newline1;
  public void init() {
    display1 = new TextArea(1, 90);
    display1.setEditable(false);
     add(display1);
    newline1 = System.getProperty("line.separator");
    addItem("init: " + threadInfo(Thread.currentThread()));
  }
  public void start() {
    addItem("start: " + threadInfo(Thread.currentThread()));
  }
  public void stop() {
    addItem("stop: " + threadInfo(Thread.currentThread()));
  }
  public void destroy() {
    addItem("destroy: " + threadInfo(Thread.currentThread()));
   }
  String threadInfo(Thread t) {
    return "thread=" + t1.getName() + ", " + "thread group="
        + t1.getThreadGroup().getName();
  }
  public void update(Graphics g1) {
    addItem("update: " + threadInfo(Thread.currentThread()));
    super.update(g1);
  }
}

[opaper]

Hi,

Please refer following given some methods of the TextArea class:

1. replaceText(String strg, int start, int end)
2. replaceRange(String strg, int start, int end)
3. preferredSize(int row1, int column1)
4. minimumSize(int row1, int column1)
5. insertText(String strg, int pos1)