Hi! I have some problem with JAVA.I read many java books but I still have problem with something like(private ,public protected..). Can you tell me how Privat, public.. are working, please help me. Tanks Peter

public variables can be accessed directly from another class: class Test {   public int x; } class Main {   Test mytest = new Test();   mytest.x=10;//this is legal } private variables can not. class Test {   private int x; } class Main {   Test mytest = new Test();   mytest.x=10;//this is an error } Hope this helps, -SN

public class Parent{ public int myPublic; protected int myProtected; private int myPrivate; //=) //stuff like constructors and methods } public class NotChild{ Parent myParent = new Parent(); //this will always work int parentPublic = myParent.myPublick; //this wont work int parentProtected = myParent.myProtected; //this will never work int parentPrivate = myParent.myPrivate; } public class YesChild extends Parent{ //this will always work int parentPublic = myParent.myPublick; //this work because it can see protected variables int parentProtected = myParent.myProtected; //this will never work int parentPrivate = myParent.myPrivate; } public - anyone can see and/or modify protected - only child classes can see private - nothing outside the class can use that variable or method hope that helps