package com.other; interface DummyInterface { void printInfo(); } class JavaOutter { private String theString; void setTheString(String str) { this.theString = str; } String getAllString() { return "abc" + theString; } void printSomething() { String localString = "local string"; final String localFinalString = "local final string"; DummyInterface anon = new DummyInterface() { @Override public void printInfo() { System.out.println(theString); // local variable localString is accessed from within inner class; needs // to be declared final //System.out.println(localString); System.out.println(localFinalString); } }; // print information from the annoymous object anon.printInfo(); } public static void main(String[] args) { JavaOutter out = new JavaOutter(); JavaInner in = out.new JavaInner(); out.setTheString("the outter string"); in.printInfo(); out.printSomething(); } class JavaInner { // inner class cannot have static member // unless it is const (final primitive decided at compile time) static final String CONST_STR = "abcdefg"; JavaInner() { this.theInnerString = "the inner string"; } String theInnerString; void printInfo() { System.out.println(theString); System.out.println(theInnerString); } } }