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public class HelloMJ {
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 }
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Effective Java: Item 1

Static Factory Methods
Four Advantages:
1) have names
2) not required to create a new object each time they are invoked
3) return an object of any subtype of their return type
4) reduce the verbosity of creating parameterized type instances.(for example: newInstance() method) ......

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JUnit 
JUnitÊÇÓÉ Erich Gamma ºÍ Kent Beck ±àдµÄÒ»¸ö»Ø¹é²âÊÔ¿ò¼Ü£¨regression testing framework£©¡£Junit²âÊÔÊdzÌÐòÔ±²âÊÔ£¬¼´Ëùν°×ºÐ²âÊÔ£¬ÒòΪ³ÌÐòÔ±ÖªµÀ±»²âÊÔµÄÈí¼þÈçºÎ£¨How£©Íê³É¹¦ÄܺÍÍê³ÉʲôÑù£¨What£©µÄ¹¦ÄÜ¡£JunitÊÇÒ»Ì׿ò¼Ü£¬¼Ì³ÐTestCaseÀ࣬¾Í¿ÉÒÔÓÃJunit½øÐÐ×Ô¶¯²âÊÔÁË¡ ......

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package innerClass.test;
public class InheritTest
{
    public static void main(String[] args)
    {
        Person p = new Person("LMS");
        p.show();
      ......
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