These are used to compare values. x=3 is relational, it compares 3 to the letter x and says they are equal. Operator Use Description > x>3 x is greater than 3 (not equal to 3) < x<3 x is less than 3 (not equal to 3) == x==3 x equals 3 != x!=3 x is […] Read the full article Relational operator
A word that has a specific use in the code and as such cannot be used for variable or class names. These type of words vary from programming language to programming language.
Reuse is the idea that once you’ve written a class you can use this in another part of the program, or another program entirely. This is of course providing you have tested it and know it works. The only thing you would need to check is that you are using it in the correct manner.
A portion of code that performs a specific task.