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Android | App to Add Two Numbers

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  • Difficulty Level : Basic
  • Last Updated : 08 Jun, 2022

Below are the steps for Creating a Simple Android Application to Add Two Numbers

  • STEP-1: First of all go to the xml file
  • STEP-2: Now go to the text and write the code for adding 3 TextView,2 EditText and Button and Assign ID to each component. Assign margin top, left, right for the location.
  • STEP-3: Now, open up the activity java file.
  • STEP-4: Declare few variables and the values entered in the Text Views can be read by using an id which we have set in the XML code above.
  • STEP-5: Add the click listener to the Add button.
  • STEP-6: When the Add button has been clicked, add the values and store it into the sum variable.
  • STEP-7: To show the output in the result text view, set the sum in the textview.

Complete code of layout xml file and java file is given below. 

activity_main.xml

 

MainActivity.java

 

After Complete layout xml file it will be shown as given below Output: Note: Similarly, Android App to subtract, multiply and divide numbers can be made by making minor changes in the Java and XML code.

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