How to Display Output in Text Area in java

Question

I am trying to display my output in Jtext Area.

while ((line1 = br1.readLine()) != null) {
    txt_output.append(line1+"\n");
    System.out.println(line1);
}

It gives me output once all the process finished. What want to show output execution line by line instead of all together.

please help me.....

are you saying your console gets updated in the process and JTextArea not? — Oleg Mikheev, Mar 05 '12 at 08:54
I am getting output in Jtextarea.My requirement is i want line by line output. Above lines gives me complete output once all finished. — Code Hungry, Mar 05 '12 at 08:58

score 1 · Accepted Answer · edited May 23 '17 at 11:48

1

One similar post in Stackoverflow, deals with concurrency using threads.

Refer this one: Dynamically refresh JTextArea as processing occurs?

edited May 23 '17 at 11:48

Community

1
1

answered Mar 05 '12 at 08:57

vaisakh

1,041
9
19

score 0 · Answer 2 · answered Mar 05 '12 at 09:04

0

You can possibly use the

textArea.setText();

method every time when you want the message to be printed. It automatically removes the previous text and writes the new one.

answered Mar 05 '12 at 09:04

me_digvijay

5,374
9
46
83

Hi this is giving Only Last output i want all the output. – Code Hungry Mar 05 '12 at 09:16
The following method is very bad practice but you can try it for now int temp = 0; while ((line1 = br1.readLine()) != null) { if(temp==0){ txt_output.append(line1+"\n"); temp = 1; } if(temp==1) { System.out.println(line1); temp = 0; } } – me_digvijay Mar 05 '12 at 09:49

score 0 · Answer 3 · answered Mar 05 '12 at 09:53

I know the following method is very bad practice but you can try it for now

int temp = 0;
while ((line1 = br1.readLine()) != null) {
if(temp==0){
   txt_output.append(line1+"\n");
   temp = 1;
 }
 if(temp==1) {
  System.out.println(line1);
temp = 0;
}
}

How to Display Output in Text Area in java

3 Answers3