What is the difference between the number zero the null


Problem

1. In a static method, it is easy to differentiate between calls to instance methods and calls to static methods. How do you tell them apart? Why is it not as easy for methods that are called from an instance method?

2. What is the this reference? Why would you use it?

3. What is the difference between the number zero, the null reference, the value false, and the empty string?

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Computer Engineering: What is the difference between the number zero the null
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