Working with Arrays in Java is common because this data structure is simple to use and very efficient. Most programming language supports arrays, so many developers may have idea on how to use it without reading much documentation. Specially for programmers coming from C or C++ background, the way on how to use it is very similar. But there is one big limitation when working with Arrays in Java, the length or size of Arrays are fixed. Meaning we can not increase or decrease the size without programming tricks. Below are some examples on how we can add element to a String Array in Java.