Java Programming Examples Tutorial Index

Java String Programs

This Java program is used to demonstrates concatenate two strings using concat method.

public class JavaConcat {
    public static void main(String[] args){
        String a = "w3schools";
        String b = ".in";
        String c = a.concat(b);
Program Output:



Here is a Java program which illustrates how you can concatenate two strings in Java. The meaning of concatenation is that two words can be joined as a single word. In other words, this pre defined method is used to append one string to the end of other string (Here string a with string b). This method returns a String in the form of result with the value of the String passed into the method, attached to the end of the String creating a new string.

In this program, first a class name JavaConcat is declared with the access specifier public and inside it the main() method has been defined. Inside the main(), 2 string type variables has been defined named a and b. The new concatenated string which gets generated after using concat() is being stored in another String variable name c which is being initialized by the predefined method concat() and operates on two strings 'a' and 'b' to concatenate then as one.

The concatenation in Java can also be done in other ways. One simple way is by using symbol between two string operands. Another way of doing is by the use of pre defined method concat() as done above.