I want to create a variable calculation android app.
The image below is a rough image of the app.
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Enter a number to 1,2, and select an operator.
Then, the number of X is displayed on the 3.
For example, 1 = 100,2 = 200, operator = +
In this case 3 = 100.
If you have any questions, please feel free.
Thank you for reading to the end.