String Concatenation

CODE

class StringConcatenationTest
{
    public static void main(String arg[])
    {
        String s1 = "Aam";
        String s2 = "Admi";
        String s3 = s1.concat(s2); // LINE A
        System.out.println(s3);
        String s4 = s3 + "Party"; // LINE B
        System.out.println(s4);
        String s5 = "Shaked".concat(" Indian Politics"); // LINE C
        System.out.println(s5);    
    }
}

OUTPUT

AamAdmi
AamAdmiParty
Shaked Indian Politics

DESCRIPTION

At LINE A, adding s1 and s2 string variables using concat method.
At LINE B, "party" is added to "AamAdmi" using + operator.
At LINE C, adding two string literals and displaying the result.

THINGS TO TRY

Apply concat method for different string objects and string literals.

Apply + operator for more than two string objects.

Try for the below code.

String version = "Java Version".concat(1.7); System.out.println(version);
The above code gives a Compilation Error as concat is not applicable to any other data type other than String.

Try for the code.

String first = "Merit "; String second = "Campus";
Concatenate the above strings using concat method.

Try it Online

String Concatenation - Java Example Program