Java SE ½Ó¿Ú¡¢³éÏóÀà
package demo;
interface Runner{
int ID=1;
void run();
void fly();
}
abstract class AI implements Runner{
public void run(){
System.out.println("I am running");
}
public void bb(int x,int y){
System.out.println((x+y));
}
abstract void breathy();
}
public class TestInterface extends AI /*implements Runner*/{
/**
* @param args
*/
public static void main(String[] args) {
// TODO ×Ô¶¯Éú³É·½·¨´æ¸ù
TestInterface ti=new TestInterface();
ti.run();
ti.breathy();
ti.fly();
ti.bb(1, 2);
}
void breathy() {
System.out.println("I am breathing");
}
public void fly() {
System.out.println("I am flying");
}
}
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Ò»¡¢ JDK (Java Development Kit)
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁËJavaÔËÐл·¾³£¨Java Runtime Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕJDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJ ......
/**
* ±£ÁôÁ½Î»Ð¡Êý
* @param d
* @return
*/
private static double remainTwoNumbers(double d){
java.math.BigDecimal f1 = new java.math.BigDecimal(d);//СÊýµãºó±£Áô2Î ......
/**
* ´¦Àíʱ¼äÒì³£ Date to String
* Èç¹ûת»»³öÏÖÒì³£»á¸øÄ¬ÈÏÖµ00:00
* @param time
* @param sdf
* @return
*/
public static String handleDateParseException(Object time){
String tempTime = "00:00";
try{
......
package org.mingyuan.fetcher;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
i ......
Reflection µÄ¼òµ¥Ó¦Ó㬰üÀ¨field£¬ method£¬constructorµÄÓ¦Óá£
package com.gaoqian.reflection;
import java.lang.reflect.Array;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Typ ......