•   Basic of Java
  •   OOPs Concepts String
  • Java String


    Java String Methods


    String Concatenation in Java

    In java, string concatenation forms a new string that is the combination of multiple strings. There are two ways to concat string in java:

    1. By + (string concatenation) operator
    2. By concat() method

    1) String Concatenation by + (string concatenation) operator

    Java string concatenation operator (+) is used to add strings. For Example:

    Flash Soon


    Output:

    The Java compiler transforms above code to this:

    Flash Soon


    In java, String concatenation is implemented through the StringBuilder (or StringBuffer) class and its append method. String concatenation operator produces a new string by appending the second operand onto the end of the first operand. The string concatenation operator can concat not only string but primitive values also. For Example:

    Flash Soon


    Output:

    Note: After a string literal, all the + will be treated as string concatenation operator.

    2) String Concatenation by concat() method

    The String concat() method concatenates the specified string to the end of current string. Syntax:

    Flash Soon


    Let's see the example of String concat() method.

    Flash Soon


    Output:

    Copyright 2017 Design& Development