文章目錄 equalshashCode String類:public boolean equals(Object anObject) 重載了object的equals方法Compares this string to the specified object. The result is true if and only if the argument is not null and is a String object that
1). 內部類內部類是包含在類中的類,也稱為"嵌套類",包含內部類的類又稱為"外部類".內部類可以看作是外部類的一個成員,所以內部類也成為"成員類".在外部參考內部類時,則必須在內部類名前冠以其所屬外部類名字才能使用.在用new 運算子建立內部類時,也要在 new 前面冠以物件變數.eg:內部類與外部類的訪問規則.public class Group{ private int age; //聲明外部類的私人成員變數 public class Student //聲明內部類 {
Java編程之SystemHello World!是整合至c經典的一個範例,今天再一次發揚這個經典的範例!廢話不多說看代碼吧! public class HelloWorld{ public static void main(String [] args){ System.out.println("Hello World !");
from: http://www.javacoffeebreak.com/articles/designpatterns/index.htmlFor those who haven't heard of design patterns before, or who are familiar with the term but not its meaning, a design pattern is a template for software
from: http://www.oracle.com/technetwork/java/javase/documentation/index-137868.html (how to write doc comments)Ordering Multiple Tags We employ the following conventions when a tag appears more than once in a documentation comment. If
Copied from http://weblogs.java.net/blog/enicholas/archive/2006/05/understanding_w.html Some time ago I was interviewing candidates for a Senior JavaEngineer position. Among the many questions I asked was "What can youtell me about weak references?"
Forwarded from http://www.javatutorialhub.com/wiki/Stack_and_HeapStack and HeapThe JVM divided the memory into following sections.HeapStackCodeStaticThis division of memory is required for its effective management.The code section contains your
Effective Java Programming Language GuideBy Joshua BlochAddison-Wesley ProfessionalPaperback, 252 pages Design Patterns: Elements of Reusable Object-Oriented SoftwareBy Erich Gamma; Richard Helm; Ralph Johnson; John VlissidesAddison-Wesley
There are in general two ways to create and start a new thread in Java.1. extend the Thread class and override the run() methodpublic class MyThread extends Thread{ @Override public void run(){ //define your task here }}2. implement
Q: Does Java pass by reference or pass by value?A: Your question demonstrates a common error made by Java language newcomers. Indeed, even seasoned veterans find it difficult to keep the terms straight.Java does manipulate objects by reference, and