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Thread: Problem with a calculator app I'm designing for class. Only diplays a zero regardless of button pressed

  1. #1
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    Default Problem with a calculator app I'm designing for class. Only diplays a zero regardless of button pressed

    public void buttonClick(View v){



    String id = (v.getResources().getResourceName(v.getId())).spli t("/")[1];
    switch(id){
    case "Plus":

    num1 = Double.parseDouble(Display.getText().toString());
    operator = Plus.getText().charAt(0);
    Display.setText(null);
    break;


    case "Minus":
    num1 = Double.parseDouble(Display.getText().toString());
    operator = Minus.getText().charAt(0);
    Display.setText(null);
    break;

    case "Mult":
    num1 = Double.parseDouble(Display.getText().toString());
    operator = mult.getText().charAt(0);
    Display.setText(null);
    break;

    case "Division":
    num1 = Double.parseDouble(Display.getText().toString());
    operator = division.getText().charAt(0);
    Display.setText(null);
    break;

    case "Sqrt":
    num1 = Double.valueOf(Display.getText().toString());


    break;
    case "Percent":
    num1 = Double.valueOf(Display.getText().toString());

    case "Equals":
    num2 = Double.parseDouble(Display.getText().toString());
    if(operator == '+'){
    total = num1+ num2;
    total = Double.parseDouble(Display.getText().toString());


    }else if(operator == '-'){
    total = num1-num2;
    total = Double.parseDouble(Display.getText().toString());

    }else if(operator == '\u00D7'){
    total = num1*num2;
    total = Double.parseDouble(Display.getText().toString());

    }else if(operator == '\u00f7'){
    total=num1/num2;
    total = Double.parseDouble(Display.getText().toString());


    }else if(operator == '%'){
    totaldouble)num1)*100;

    }else
    total=Math.sqrt(num1);
    total=Double.parseDouble(Display.getText().toStrin g());


    break;
    case "Decimal":
    if(num1=='0') {
    Display.setText("0" + "." + "num1");
    }
    else
    Display.setText("num1"+"."+"num1");
    break;
    case "AC":
    Display.setText("0");
    break;
    default:
    if(number.equals(one)) {
    isValid = true;
    if(number.equals(firstNumber)){
    Display.setText(Display.getText().toString()+ "1");}
    else{
    Display.setText(Display.getText().toString()+"1");
    }

    }else if(number.equals(two)){
    if(number.equals(firstNumber)){
    Display.setText(Display.getText().toString()+ "2");}
    else
    Display.setText(Display.getText().toString()+"2");


    }else if(number.equals(three)){
    if(number.equals(firstNumber)){
    Display.setText(Display.getText().toString()+"3"); }
    else
    Display.setText(Display.getText().toString()+"3");


    }else if(number.equals(four)){
    if(number.equals(firstNumber)){
    Display.setText(Display.getText().toString()+"4"); }
    else
    Display.setText(Display.getText().toString()+"4");


    }else if(number.equals(five)){
    if(number.equals(firstNumber)){
    Display.setText(Display.getText().toString()+"5"); }
    else
    Display.setText(Display.getText().toString()+"5");


    }else if(number.equals(six)){
    if(number.equals(firstNumber)){
    Display.setText( Display.getText().toString()+"6");}
    else
    Display.setText(Display.getText().toString()+"6");


    }else if(number.equals(seven)){
    if(number.equals(firstNumber)){
    Display.setText(Display.getText().toString()+ "7");}
    else
    Display.setText(Display.getText().toString()+"7");


    }else if(number.equals(eight)){
    if(number.equals(firstNumber)){
    Display.setText( Display.getText().toString()+"8");}
    else
    Display.setText(Display.getText().toString()+"8");


    }else if(number.equals(nine)){
    if(number.equals(firstNumber)){
    Display.setText( Display.getText().toString()+"9");}
    else
    Display.setText(Display.getText().toString()+"9");


    }else{
    if(number.equals(firstNumber)){
    Display.setText(Display.getText().toString()+"0"); }
    else
    Display.setText(Display.getText().toString()+"0");


    }

  2. #2
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    Default Re: Problem with a calculator app I'm designing for class. Only diplays a zero regardless of button pressed

    Please place the code between code tags to preserve formatting. See BBCodes below. Also, the emoji obscures the text so please omit it. And include all your code.

    Regards,
    Jim

  3. #3
    Member John Joe's Avatar
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    Default Re: Problem with a calculator app I'm designing for class. Only diplays a zero regardless of button pressed

    Please post stacktrace
    Whatever you are, be a good one

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