In this video, we will write a program to Concatenate Two integers in JAVA. 

The term concatenation means combining the text from multiple ranges and/or strings, but it does not provide any delimiter or ignore empty arguments. 

Here we see two different methods for integer concatenation: 
1. Using + operator 
2. Using StringBuilder Class 

The first way is using the + operator. This is a very simple way to concatenate two strings together. But it doesn't allow for any formatting/trimming. However, it can be done with one line of code.

Another way is using append() and the StringBuilder class, which allows for a lot more customization than just adding two strings together. It also has a lot more overhead than the other methods because it needs to create an object every time you use it.

Examples: 
Input integer 1: 7 
Input integer 2: 15 
Output integer: 715 

Input integer 1: 10 
Input integer 2: 15 
Output integer: 1015 

How to concatenate two Integer values into one?:
https://www.geeksforgeeks.org/how-to-concatenate-two-integer-values-into-one/