A simple example of static loading and dynamic loading of Java reflection _java

Static loading:

Package COM.IMOOC. Loading class;

public class Office_static {public
	static void Main (string[] args) {
		//new Create object, is statically loaded class, need to load all possible classes at compile time
		if ("word". Equals (Args[0])) {
			Word w = new word ();
			W.start ();
		}
		if ("Excel". Equals (Args[0])) {
			Excel e = new Excel ();
			E.start ();}}

This program must be compiled with Word and Excel two classes exist to do, even if you do not use Excel to load

Dynamic loading:

1, Interface officeable:

Package COM.IMOOC. Loading class;

Public interface Officeable {public
	void Start ();
}

2, Word implementation interface:

Package COM.IMOOC. Loading class;

public class Word implements officeable{public
	void Start () {
		System.out.println ("Word start");
	}

3, Excel Implementation interface:

Package COM.IMOOC. Loading class;

public class Excel implements officeable{public

	void Start () {
		System.out.println ("Excel start");
	}

4. Main method

Package COM.IMOOC. Loading class;

public class Officebetter {
	/**
	 * @param args
	 *
	/public static void main (string[] args) {
		try {
			/ /dynamic load class, at run time loaded class
			C = Class.forName (Args[0]);//Enter COM.IMOOC in Run configuration. Load class. Excel
			//Through the class type, create the class object ( First convert to Word and Excel's Common interface officeable)
			officeable oa = (officeable) c.newinstance ();
			Oa.start ();
			
			The following two are not recommended because you are not sure whether to load Word or Excel, or to turn
//			Word word = (word) c.newinstance ();			Word.start ();			Excel Excel = (Excel) c.newinstance ();			Excel.start ();
		} catch (Exception e) {
			e.printstacktrace ();}}}

The above is a small series for everyone to bring the static load of Java reflection and dynamic loading of the simple example of all the content, I hope to help you, a lot of support cloud Habitat Community ~