The concatenation operator

Another thing strings can do, which most Java classes cannot, is make use of the addition sign (+) operator. If we declare three strings (say, s1, s2, and s3), we can set the value of our third string to be one string plus another string. We can even add a string literal into the mix. Then, we print s3:

package stringsinjava; 
 
public class StringsInJava { 
    
    public static void main(String[] args) { 
        char c = 'c'; 
        String s1 = "stringone"; 
        String s2 = "stringtwo"; 
        String s3 = s1+s2+"LIT"; 
        System.out.println(s3); 
    } 
} 

When we run this program, we'll see these three strings added together in much the manner that we would expect: