+

[java] String parameter, text += "a" text += "b"

public class StringPlus { public static void main(String[] args) { String text = ""; text += "a"; System.out.println(text); text += "b"; System.out.println(text); } } result : hklee@hklee:~/Dropbox/java/string$ javac StringPlus.java && java StringPlus a ab