How To Turn A Jtextarea Comparable With String

Question

I'm Trying To Make A Chat Bot But It Always Comes Up With A Error When I Type:

if(Write == "hi"){
    Reply.setText("HI!");
}

It Will Come With The Error: jtextarea incomparable with String

What Shall I Do?

Answer 1

Not much context in the question to work with, but I suppose you are looking for

if ("hi".equals(Write.getText()))

By the way, never compare strings with == unless you really want them to be exactly the same instance of the String class.

Answer 2

Explanation

You can not compare completely different objects with each other by using ==. Write is of type JTextArea and "hi" is of type String. Those objects have nothing in common thus the compiler complaints.

---

Solution

You probably wanted to compare the text stored inside JTextArea with the text "hi". You access this text by using the JTextArea#getText method (documentation).

Now note that you never (except you know what you do) should compare Strings by using ==. The result will not be what you expected. Use String#equals instead. Here's more on this topic: How do I compare strings in Java?

So your code should probably look like:

if ("hi".equals(Write.getText())) {
    Reply.setText("HI!");
}

---

Naming conventions

Last note that you should stick to naming conventions. Variable names, also method names, should always begin with a lowercase character. Uppercase is only used for class names (and constants). So you should rather write write and reply:

if ("hi".equals(write.getText())) {
    reply.setText("HI!");
}