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String Concatenation in Java
You can concatenate two strings in Java either by using the concat() method or by using the ‘+’ , the “concatenation” operator.
The concat() method
The concat() method appends one String to the end of another. This method returns a String with the value of the String passed into the method, appended to the end of the String, used to invoke this method.
Example
public class ConncatSample { public static void main(String []args) { String s1 = "Hello"; String s2 = "world"; String res = s1.concat(s2); System.out.print("Concatenation result:: "); System.out.println(res); } }
Output
Concatenation result:: Helloworld
The ‘+’ operator
Just like the concat method the ‘+’ operator also performs the concatenation operation on the given operators.
Example
public class ConncatSample { public static void main(String []args) { String s1 = "Hello"; String s2 = "world"; String res = s1+s2; System.out.print("Concatenation result:: "); System.out.println(res); } }
Output
Concatenation result:: Helloworld
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