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How to clear a line?

In the program I'm working on, the text box should display some text at some point.

output.setText( outputString );
outputString = "";
Output

is a JTextField. These lines of code are in the method, and when it is called for the first time, it works fine. However, when it is called a different time, the source text of outputString remains. Why is this happening, and how can I fix it?

Well, I think this is because the lines are immutable. The fact is that outputString never changes, so it still has the text from the initial method call.

How can I somehow change the text in a line?

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10 answers

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Other answers indicating that the Lines are immutable are accurate.

But if you want to have the "clear string" functionality, you can use a StringBuffer and call it on it :

stringBuffer.delete(0, stringBuffer.length());
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