2018年2月1日 · I was just reading through the book and it had the terms, "HAS-A" and "IS-A" in it. Anyone know what they mean specifically? Tried searching in the book, but the book is 600 …

An IS-A relationship is inheritance. The classes which inherit are known as sub classes or child classes. On the other hand, HAS-A relationship is composition.

2012年7月24日 · I am trying to make a simple calculator to determine whether or not a certain year is a leap year. By definition, a leap year is divisible by four, but not by one hundred, …

2024年3月13日 · All Platforms (Mac, Linux & Windows) 2024. If you just need to upgrade your old version of Node.js to the latest one and don't need multiple versions, simply over-write your …

2008年8月29日 · A semaphore is a programming concept that is frequently used to solve multi-threading problems. My question to the community: What is a semaphore and how do you use it?

What are Null Pointer Exceptions (java.lang.NullPointerException) and what causes them? What methods/tools can be used to determine the cause so that you stop the exception from …

I found a good way to do this with using a function and basic code. This is a code that accepts a string and counts the number of capital letters, lowercase letters and also 'other'.

2010年4月19日 · At times you may want to distinguish between mocking as opposed to stubbing.There may be some disagreement about this subject but my definition of a stub is a …

2008年8月19日 · A lambda is a type of function, defined inline. Along with a lambda you also usually have some kind of variable type that can hold a reference to a function, lambda or …

2016年7月11日 · You may want to explore the notion of namespaces.In Python, the module is the natural place for global data:. Each module has its own private symbol table, which is used as …