Java String Concatenation with + operator

Question

I got confused with the String concatenation.

String s1 = 20 + 30 + \"abc\" + (10 + 10);
String s2 = 20 + 30 + \"abc\" + 10 + 10;
System.out.println(s1);
Sys         


        

Answer 1

You will need to start with an empty string.

So, this might work:

String s2 = ""+20+30+"abc"+10+10; 

Or this:

String s2 ="";
s2 = 20+30+"abc"+10+10;
System.out.println(s2);