YouTipJava String Concat
# Java concat() Method
[Java String Class](#)
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In Java, the `concat()` method is used to concatenate two strings.
This method belongs to the `String` class and can be used to append one string to the end of another.
It is important to note that the `concat()` method does not modify the original string; instead, it returns a new string.
### Syntax
public String concat(String s)
### Parameters
* **s** -- The string to be concatenated.
### Return Value
Returns the new concatenated string.
### Example
## Example
public class Test {
public static void main(String args[]){
String s ="Tutorial: ";
s = s.concat("www.");
System.out.println(s);
}
}
The output of the above program is:
Tutorial: www.
### Notes
* If the parameter passed to the `concat()` method is `null`, a `NullPointerException` will be thrown.
* If the parameter passed to the `concat()` method is an empty string (`""`), the returned string will be the same as the string on which the `concat()` method was called.
## Example
public class ConcatExample {
public static void main(String[] args){
String str1 ="Hello";
// Concatenate an empty string
String result = str1.concat("");
// Print the result
System.out.println(result);// Output "Hello"
}
}
In summary, the `concat()` method is a simple and effective way to concatenate strings, but be careful to avoid passing `null` to prevent exceptions.
* * Java String Class](#)
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