Java String concat() with examples
The Java String concat() method concatenates one string to the end of another string. This method returns a string with the value of the string passed into the method, appended to the end of the string. Consider the below illustration:
Illustration:
Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more, please refer Complete Interview Preparation Course.
Input: String 1 : abc
String 2 : def
String n-1 : ...
String n : xyz
Output: abcdef...xyz Syntax:
public String concat(String anostr)
Parameter: A string to be concatenated at the end of the other string
Return: Concatenated(combined) string
Example:
java
// Java program to Illustrate Working of concat() method// with Strings// By explicitly assigning result // Main classclass GFG { // Main driver method public static void main(String args[]) { // Custom input string 1 String s = "Hello "; // Custom input string 2 s = s.concat("World"); // Explicitly assigning result by // Combining(adding, concatenating strings) // using concat() method // Print and display combined string System.out.println(s); }} |
Hello World
Example 2:
java
// Java program to Illustrate Working of concat() method// in strings where we are sequentially// adding multiple strings as we need // Main classpublic class GFG { // Main driver method public static void main(String args[]) { // Custom string 1 String str1 = "Computer-"; // Custom string 2 String str2 = "-Science"; // Combining above strings by // passing one string as an argument String str3 = str1.concat(str2); // Print and display temporary combined string System.out.println(str3); String str4 = "-Portal"; String str5 = str3.concat(str4); System.out.println(str5); }} |
Computer--Science Computer--Science-Portal
As perceived from the code we can do as many times as we want to concatenate strings bypassing older strings with new strings to be contaminated as a parameter and storing the resultant string in String datatype.
