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Thread: switch statement not working for JFrame Calculator

  1. #1
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    Default switch statement not working for JFrame Calculator

    I am working on a calculator for my Java programming class. I have the whole interface with buttons set up but right now I'm having a problem with my case statements.
    This is what my case statement says for my equals button.
    switch ( math_operator ) {
    case '+':
    total2 = total1 + Double.parseDouble(textDisplay.getText( ) );
    break;
    case '-':
    total2 = total1 - Double.parseDouble(textDisplay.getText( ) );
    break;
    case '/':
    total2 = total1 / Double.parseDouble(textDisplay.getText( ) );
    break;
    case '*':
    total2 = total1 * Double.parseDouble(textDisplay.getText( ) );
    break;
    case '1/x': //MY ERROR IS RIGHT HERE.
    total2=1/total1;
    break;
    case '√':
    total2 = Math.pow(total1,.5);
    break;
    case '%':
    total2 = total1/100;
    case '2':
    total2 = Math.pow(total1,2);

    textDisplay.setText(Double.toString(total2));
    total1=0;}
    When I try to type something in that is longer then 1 bit it gives me an error. (unclosed character literal). For all the other functions its only 1 bit so far and that is the text on my button for my interface. If you could please help!!


  2. #2
    Administrator copeg's Avatar
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    Default Re: switch statement not working for JFrame Calculator

    '1/x' is not a valid char. See Primitive Data Types (The Java™ Tutorials > Learning the Java Language > Language Basics)

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