morningdew

2016年6月27日

摘要： ref: http://www.studytonight.com/java/multithreading-in-java Multithreading A program can be divided into a number of small processes. Each small proc 阅读全文

posted @ 2016-06-27 00:42 morningdew 阅读(198) 评论(0) 推荐(0) 编辑

Java Method Overriding --- runtime polymorphism ! not overloading

摘要： Method Overriding between parent and child The key benefit of overriding is the ability to define method that's specific to a particular subclass type 阅读全文

posted @ 2016-06-27 00:00 morningdew 阅读(283) 评论(0) 推荐(0) 编辑

2016年6月26日

Java Aggregation (HAS-A relationship)

摘要： Aggregation (HAS-A) HAS-A relationship is based on usage, rather than inheritance. In other words, class A has-a relationship with class B, if code in 阅读全文

posted @ 2016-06-26 23:28 morningdew 阅读(317) 评论(0) 推荐(0) 编辑

Java Inheritance ( IS-A relationship)

摘要： Inheritance (IS-A) when a class extends another another class it inherits all non private members including fields and methods. Inheritence in Java ca 阅读全文

posted @ 2016-06-26 23:24 morningdew 阅读(239) 评论(0) 推荐(0) 编辑

Java Modifiers, default/public/protected/private/ final/static/transient/synchronized/volatile

摘要： reference: http://www.studytonight.com/java/modifier-in-java.php Modifiers are keywords that are added to change meaning of a definition. In java, mod 阅读全文

posted @ 2016-06-26 23:12 morningdew 阅读(529) 评论(0) 推荐(0) 编辑

Java Garbage Collection

摘要： Garbage Collection In Java destruction of object from memory is done automatically by the JVM. When there is no reference to an object, then that obje 阅读全文

posted @ 2016-06-26 21:13 morningdew 阅读(252) 评论(0) 推荐(0) 编辑

Java Class/Method

摘要： A class can have only public or default(no modifier) access specifier. It can be either abstract, final or concrete (normal class). It must have the c 阅读全文

posted @ 2016-06-26 20:40 morningdew 阅读(282) 评论(0) 推荐(0) 编辑

Data Types in Java

摘要： In Java, Data types are classified into two categories: 1. Primitive Data Type 2. Non-Primitive Data Type there are 8 primitive data types: char boole 阅读全文

posted @ 2016-06-26 20:05 morningdew 阅读(194) 评论(0) 推荐(0) 编辑

Java overview && JVM

摘要：参考： http://www.cnblogs.com/java-chl/p/5614940.html http://www.studytonight.com/java/component-of-java.php JVM 生命周期程序开始执行它才运行，程序结束时它就停止。一台机器上运行几个程序就有几阅读全文

posted @ 2016-06-26 16:09 morningdew 阅读(234) 评论(0) 推荐(0) 编辑

Interface Vs. Abstract Class

摘要：此文参考： http://www.cnblogs.com/liu-5525/p/5614463.html http://www.studytonight.com/java/abstract-class.php http://www.studytonight.com/java/java-interfa 阅读全文

posted @ 2016-06-26 15:17 morningdew 阅读(267) 评论(0) 推荐(0) 编辑

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