Java String: concat() Method

public String concat(String str)

The concat() method is used to concatenate a given string to the end of another string.

If the length of the argument string is 0, then this String object is returned.

Otherwise, a String object is returned that represents a character sequence that is the concatenation of the character sequence represented by this String object and the character sequence represented by the argument string.

Java Platform: Java SE 8


concat(String str)


Name Description Type
str the String that is concatenated to the end of this String. String

Return Value:
a string that represents the concatenation of this object's characters followed by the string argument's characters.
greater than, equal to, or less than this String, ignoring case

Return Value Type: string

Pictorial presentation of Java String concat() Method

Java String: concat() Method

Example: Java String concat() Method

public class Example {

public static void main(String[] args)
        String str1 = "PHP Exercises and ";
        String str2 = "Python Exercises";
System.out.println("String 1: " + str1);
System.out.println("String 2: " + str2); 

        // Concatenate the two strings together.
        String str3 = str1.concat(str2);

        // Display the new String.
System.out.println("The concatenated string: " + str3);


String 1: PHP Exercises and                            
String 2: Python Exercises                             
The concatenated string: PHP Exercises and Python Exercises

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