CODEWITHSUNDEEP
java
HShbib
HShbib

Reputation: 1841

Passing data from one class to another in Java

I am trying to pass an output to a text area.

I have Class Search which handles all the searching and display the output using System.out.println().

I have created Class GUI in order to make the console output (System.out.println()) appear in the JTextArea.

I am trying to pass that data into the text area using objects but I dont know why it is not working.

Class Search has this method that calculates the output:

 public static void searchIndex(String searchString) throws IOException, ParseException

Class GUI has the text1

In Class GUI I have tried this: 

text1.setText(Search.searchIndex(searchString));

but it is giving me an error searchString cannot be resolved to a variable

Any suggestions ?

Regards.

Upvotes: 0

Views: 675

Answers (2)

Tim Bender
Tim Bender

Reputation: 20442

searchString cannot be resolved to a variable

The above error is caused by the fact that you are trying to use the variable "searchString" without declaring it.

String searchString = "Some string that is in the search index";
text1.setText(Search.searchIndex(searchString));

Upvotes: 0

Bhesh Gurung
Bhesh Gurung

Reputation: 51030

The method is not returning:

public static void searchIndex(String searchString) throws IOException, ParseException {

Need to change void to String and also return the result:

public static String searchIndex(String searchString) throws IOException, ParseException {
    //do search
    return resultString; 
}

For the following to work:

text1.setText(Search.searchIndex(searchString));

Upvotes: 2

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