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【Android Development for Beginners】Lesson 2A : Update a Variable in the App

This Notes is according to the udacity free course :

Android Development for Beginners

The Notes below are my own notes in class.

Lesson 2A :  Update a Variable in the App

When you put new variable in the MainActivity.java
you will get a new results when you press the button"+"



/** * This method is called when the order button is clicked. */
public void increment(View view) {
int quantity = 1;
quantity = 2;
quantity = 3;
quantity = 4;
display(quantity);
}


But in this class you will wonder whether the number just SKIP to the final quantity.

USE THE DEBUGGER 


H.W.



Some tips : you will find that the number just skip to the quantity of 4. This is not the result we're expected, so we will discuss it in the next note.

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