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.
Signature:

 public String concat(String anostr)

Parameter:

 anostr- string to be concatenated at the
  end of the another string.

Return:

  combination of two strings is returned.

Example:To show working of concat() method

// Java program to demonstrate 
// working of concat() method 
  
class Gfg { 
    public static void main(String args[]) 
    { 
        String s = "Gfg"; 
        s = s.concat("! is the best."); 
        System.out.println(s); 
    } 
} 

Output:

Gfg! is the best.

// Java program to demonstrate 
// working of concat() method 
  
class Gfg { 
    public static void main(String args[]) 
    { 
        String s = "Gfg"; 
  
        // We must explicitly assign result 
        // of s.concat() to s.  Since not  
        // assigned to s, s does not change. 
        s.concat("! is the best."); 
  
        System.out.println(s); 
    } 
} 

Output:

Gfg

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