Arrays in Java
An array stores a collection of values (elements) which are all of the same type. The following statement creates an array of integers: The array variable arr is of the type int[], where int is the type of the elements. …
Category: Java
Strings in Java
Recall that a class is a description of an object type. An object is an instantiation of a class. A class may have one or more constructors, which are called when an object is created. An object variable is essentially …
Static Methods in Java
A static method in a class is a method declared with the static modifier. The following is a class Helper defined with static methods abs() and main(): The signature of the method abs() is: It has the following parts: public: …
Loops in Java
While Loop A loop allows us to execute a block of statements multiple times. The following is a while loop printing out values from 0 to 9. When we run the code, the condition is first evaluated. If it is …