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Thread: Problem with a calculator app I'm designing for class

  1. #1
    Junior Member
    Join Date
    Mar 2019
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    Default Problem with a calculator app I'm designing for class

    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 == '%'){
    total double ) 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
    Super Moderator Norm's Avatar
    Join Date
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    Eastern Florida
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    Default Re: Problem with a calculator app I'm designing for class

    You forgot to describe your problem and post any output to show it.

    Please edit your post and wrap your code with code tags:

    [code]
    **YOUR CODE GOES HERE**
    [/code]

    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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