string addition??

[j2vdk]

class stringadd{
public static void main(String ar[]){

String a="10";
string b="20";

System.out.println(a+b);

}

}

................................

how to print 30 instead of 1020
.........................................

[masijade]

Integer.parseInt(a) + .....

[Norm]

One of the confusing things for beginners. The meaning of the + operator depends on where/how it's used. When used with primiitives like int or long it means: arithmetic sum ie add the values of the two numbers and return their sum.
When used between Strings, it means: concatenate the two strings and return a new String with the 2 strings concatentated. That is what you observed.