concatenate two strings in java

Java Program to Concatenate two Strings

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In this tutorial, we are going to learn java program to concatenate two strings together.

For two input strings that are given by the user, we need to join them together and return the final string as an output.

For example

Case1: If the user gives the strings ‘java’ and ‘program’

                    then the output should be ‘javafun’.

Case2: If the user gives the inputs as ‘learn’ and ‘java’,

                    then the output should be ‘learnjava’.

Program 1 :Concatenate two Strings using ‘+’ Operator in Java

Output

Explanations

The user is given the input ‘Quescol’ and ‘Website’, now to join them together our program used the ‘+’ operator which joins two strings together and the final string generated is ‘QuescolWebsite’.

Program 2: Concatenate two Strings using join() method in Java

Output

Explanations

In this example, the two strings entered by the user are ‘Quescol’ and ‘Website’ after using the join() method which took two strings as iterable and returns the output as ‘QuescolWebsite’.

Program 3 : Concatenate two Strings using concat() method in Java

Output

Explanations

In this example, the two strings entered by the user are ‘Quescol’ and ‘Website’ after using the concat() method which took two strings as iterable and returns the output as ‘QuescolWebsite’.