https://github.com/sayed3li97/simplecalculator-android

This project is part of Introduction to Android workshop. The exercise is a Simple Calculator app that "Plus", "Minus" and "Multiplication" two numbers. This exercise aims to introduce Java data types, casting and operations within the Android environment
https://github.com/sayed3li97/simplecalculator-android

Last synced: about 1 year ago
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This project is part of Introduction to Android workshop. The exercise is a Simple Calculator app that "Plus", "Minus" and "Multiplication" two numbers. This exercise aims to introduce Java data types, casting and operations within the Android environment

• Host: GitHub
• URL: https://github.com/sayed3li97/simplecalculator-android
• Owner: sayed3li97
• Created: 2019-01-27T20:01:16.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-12-10T10:58:49.000Z (over 4 years ago)
• Last Synced: 2023-10-06T11:41:45.992Z (over 2 years ago)
• Language: Java
• Homepage:
• Size: 127 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# SimpleCalculator

This project is part of the Introduction to Android workshop. The exercise is a Simple Calculator app with "Plus," "Minus," and "Multiplication" two numbers. This exercise introduces Java data types, casting, and operations within the Android environment.

# Steps to re-create 

1. Create a new project in Android Studio (Choose the Empty Activity)

2. Navigate to app/res/layout/activity_main.xml

3. Open the Text view, and the replace the XML code with the below code 

```

    

    

    

    

    

    

        

        

        

    

```

4. Open the java file for the main activity by opening the MainActivity.java from the following path app/java/"The first folder"/MainActivity.java 

5. Replace the code in that file with the below code ("Don't remove the first line starting with the package")

```

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.EditText;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    //Declare these Variable in this location to be accessed by all the functions in this class

    private EditText Input1;

    private EditText Input2;

    private TextView Results;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        Input1 = (EditText) findViewById(R.id.inputText1);

        Input2 = (EditText) findViewById(R.id.inputText2);

        Results = (TextView) findViewById(R.id.results);

    }

    public void plus(View view){

        int input1 = Integer.parseInt(Input1.getText().toString());

        int input2 = Integer.parseInt(Input2.getText().toString());

        String res = String.valueOf(input1 + input2);

        Results.setText(res);

    }

    public void minus(View view){

        int input1 = Integer.parseInt(Input1.getText().toString());

        int input2 = Integer.parseInt(Input2.getText().toString());

        String res = String.valueOf(input1 - input2);

        Results.setText(res);

    }

    public void multi(View view){

        int input1 = Integer.parseInt(Input1.getText().toString());

        int input2 = Integer.parseInt(Input2.getText().toString());

        String res = String.valueOf(input1 * input2);

        Results.setText(res);

    }

}

```

Thank you!