Java·´Éä3
1.2.5.MethodÀࣺ
Method´ú±íij¸öÀàµÄÒ»¸ö·½·¨£¬Ìṩ¹ØÓÚÀà»ò½Ó¿ÚÉϵ¥¶Àij¸ö·½·¨µÄÐÅÏ¢¡£Ëù·´Ó³µÄ·½·¨¿ÉÄÜÊÇÀà·½·¨»òʵÀý·½·¨£¨°üÀ¨³éÏó·½·¨£©¡£ Õâ¸öÀ಻ÄÑÀí½â£¬ËüÊÇÓÃÀ´·â×°·´ÉäÀà·½·¨µÄÒ»¸öÀà¡£
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public String getName()
·µ»Ø´Ë Method ¶ÔÏó±íʾµÄ·½·¨Ãû³Æ
public Object invoke(Object obj,Object... args)
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¼òµ¥Ê¹ÓÃMethod´úÂë
String str="abc";
Method methodCharAt = String.class.getMethod("charAt",
int.class);
System.out.println(methodCharAt.invoke(str1, 1));
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н¨Ò»¸öÀàTestArgumentsÌṩmain·½·¨
public class TestArguments{
public static void main(String[] args){
for(String arg : args){
System.out.println(arg);
}
}
}
¿Í»§¶Ë²âÊÔ´úÂ룺
String startingClassName = "TestArguments";
Method mainMethod =
Class.forName(startingClassName).getMethod("main",
String[].class);
mainMethod.invoke(null,
(Object)new String[]{"111","222","333"});
1.2.6.ArrayÀࣺ
Array¹¤¾ßÀàÓÃÓÚÍê³É¶ÔÊý×éµÄ·¢Éä²Ù×÷¡£
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´ú±íÊý×éµÄClassʵÀý¶ÔÏóµÄgetSuperclass£¨£©·½·¨·µ»ØµÄ¸¸ÀàΪObjectÀà¶ÔÓ¦µÄClass¡£
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Arrays.asList()·½·¨´¦Àíint[]ºÍString[]ʱµÄ²îÒì
Àý×Ó´úÂë:
int [] a1 = new int[]{1,2,3};
int [] a2 = new int[4];
int[][] a3 = new int[2][3];
 
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package classyongfa;
public class Baseclass {
private String height;
public String getHeight()
{
return height;
}
public void setHeight(String height)
{
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package chen;
import java.util.Date;
public class Sort {
/**
* ðÅÝÅÅÐò
* @param list
* @author chenpengye
*/
public void sort(int[] list){
long begain=new Date().getTime();
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