Question

I need to add a method to the String class in an Android app so I can call it like

String myStr;
x = myStr.myNewMethod(3);

I don’t have any idea how I could do this in Java.

ps I do not want to create a Subclass of String. This would mean that I need to do coercion all over and/or declare my Strings as a new Class.

Many thanks

Answer 1

Without creating either a subclass (inhertance) or a wrapper class (composition) you cannot do this.

Just write a static helper method that takes a string and whatever other parameters you need.

static Foo myNewMethod(String s, int x)
{
    // snip...
    return someFoo;
}

// later...
String myStr = "foo";
Foo f = myNewMethod(myStr, 3);