New Line in swing

How do i add a new line in Swing? Im using netbeans, here is my source code:
This is what it outputs:
I want the output to be organized, like this:
1 Computer - 706
100 Computers = 70600
200 Computers - 141200
etc , How do i change this?

Code :

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1 Computer	706 100 Computer	70600 200 Computer	141200 300 Computer	211800 400 Computer	282400 500 Computer	353000 600 Computer	423600 700 Computer	494200 800 Computer	564800 900 Computer	635400 1000 Computer	706000

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To clarify, it is showing the output straight across the screen.

Code :

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 private void CostWOutShippingActionPerformed(java.awt.event.ActionEvent evt) {
        Output.setText(Output.getText() + "1 Computer" + "\t" + 706  + "\n" ); 
        Output.setText(Output.getText() + "100 Computers" + "\t" + 70600  + "\n" );
        Output.setText(Output.getText() + "200 Computers" + "\t" + 141200  + "\n" );
        Output.setText(Output.getText() + "300 Computer" + "\t" + 211800  + "\n" );
        Output.setText(Output.getText() + "400 Computer" + "\t" + 282400  + "\n" );
        Output.setText(Output.getText() + "500 Computer" + "\t" + 353000  + "\n" );
        Output.setText(Output.getText() + "600 Computer" + "\t" + 423600  + "\n" );
        Output.setText(Output.getText() + "700 Computer" + "\t" + 494200  + "\n" );
        Output.setText(Output.getText() + "800 Computer" + "\t" + 564800  + "\n" );
        Output.setText(Output.getText() + "900 Computer" + "\t" + 635400  + "\n" );
        Output.setText(Output.getText() + "1000 Computer" + "\t" + 706000  + "\n" );
    }

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Try

Code :

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 private void CostWOutShippingActionPerformed(java.awt.event.ActionEvent evt) {
        Output.setText("1 Computer" + "\t" + 706  + "\n" ); 
        Output.append("100 Computers" + "\t" + 70600  + "\n" );
        Output.append("200 Computers" + "\t" + 141200  + "\n" );   //etc

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[/QUOTE]

Cannot find value append.... :s

Still need a little help w/ this.