JavaÖÐ×Ö·û´®ÓëASCIIÏ໥ת»»
import java.io.UnsupportedEncodingException;
public class T {
public static void main(String[] args) throws UnsupportedEncodingException {
t1();//ASCIIת»»Îª×Ö·û´®
t2();//×Ö·û´®×ª»»ÎªASCIIÂë
}
public static void t1(){//ASCIIת»»Îª×Ö·û´®
String s="22307 35806 24555 20048";//ASCIIÂë
String[]chars=s.split(" ");
System.out.println("ASCII ºº×Ö \n----------------------");
for(int i=0;i<chars.length;i++){
System.out.println(chars[i]+" "+(char)Integer.parseInt(chars[i]));
}
}
public static void t2(){//×Ö·û´®×ª»»ÎªASCIIÂë
String s="ÐÂÄê¿ìÀÖ£¡";//×Ö·û´®
char[]chars=s.toCharArray(); //°Ñ×Ö·ûÖÐת»»Îª×Ö·ûÊý×é
System.out.println("\n\nºº×Ö ASCII\n----------------------");
for(int i=0;i<chars.length;i++){//Êä³ö½á¹û
System.out.println(" "+chars[i]+" "+(int)chars[i]);
}
}
}
Êä³ö½á¹û£º
ASCII ºº×Ö
----------------------
22307 ʥ
35806 µ®
24555 ¿ì
20048 ÀÖ
ºº×Ö ASCII
----------------------
ÐÂ 26032
Äê 24180
¿ì 24555
ÀÖ 20048
£¡ 65281
Ïà¹ØÎĵµ£º
package com.shxy.code;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
i ......
1¡¢ÖØÔØ(Overloading)
£¨1£©·½·¨ÖØÔØÊÇÈÃÀàÒÔͳһµÄ·½Ê½´¦Àí²»Í¬ÀàÐÍÊý¾ÝµÄÒ»ÖÖÊֶΡ£¶à¸öͬÃûº¯Êýͬʱ
´æÔÚ£¬¾ßÓв»Í¬µÄ²ÎÊý¸öÊý/ÀàÐÍ¡£ÖØÔØOverloadingÊÇÒ»¸öÀàÖжà̬ÐÔµÄÒ»ÖÖ±íÏÖ¡£
£¨2£©JavaµÄ·½·¨ÖØÔØ£¬¾ÍÊÇÔÚÀàÖпÉÒÔ´´½¨¶à¸ö·½·¨£¬ËüÃǾßÓÐÏàͬµÄÃû×Ö£¬µ«¾ß
Óв»Í¬µÄ²ÎÊýºÍ²»Í¬µÄ¶¨Òå¡£µ÷Ó÷½·¨Ê±Í¨¹ý´«µÝ¸øËüà ......
Java¶ÔÏóÀàÐÍת»»Ê±Java¿ª·¢Öо³£Óöµ½µÄ£¬±¾ÎÄÏòÄú½éÉÜJava¶ÔÏóÀàÐÍת»»µÄһЩ¼¼ÇɺÍ×¢ÒâÊÂÏ°üÀ¨ÏòÉÏתÐÍÓëÏòÏÂתÐͶ¼²Ù×÷ºÍÖ÷Òªµã¡£
Ò»¡¢ÏòÉÏתÐÍÓëÏòÏÂתÐÍ¡£
¶ÔÏóÀàÐ͵Äת»»ÔÚJavaÓïÑÔÆ½Ì¨Öо³£Óöµ½£¬Ö÷Òª°üÀ¨ÏòÉÏתÐÍÓëÏòÏÂתÐͲÙ×÷¡£³ÌÐò¿ª·¢ÈËÔ±ÐèÒªÊìÁ· ......
ÒªÏë½â¾ö“ÔàÊý¾Ý”µÄÎÊÌ⣬×î¼òµ¥µÄ·½·¨¾ÍÊÇʹÓÃsynchronized¹Ø¼ü×ÖÀ´Ê¹run·½·¨Í¬²½£¬´úÂëÈçÏ£º
public synchronized void run()
{
}
´ÓÉÏÃæµÄ´úÂë¿ÉÒÔ¿´³ö£¬Ö»ÒªÔÚvoidºÍpublicÖ®¼ä¼ÓÉÏsynchronized¹Ø¼ü×Ö£¬¾Í¿ÉÒÔʹrun·½·¨Í¬²½£¬Ò²¾ÍÊÇ˵£¬¶ÔÓÚͬһ¸öJavaÀàµÄ¶ÔÏóʵÀý£¬run·½·¨Í¬ ......
ºÇºÇ¡£¡£
import java.io.*;
class Exec{
public static void main(String []args)throws IOException{
//LinuxϵͳÃüÁls £l
String command = "ls -l";
//»ñÈ¡µ±Ç°ÏµÍ³µÄ»·¾³¡£
Runtime rt = Runtime.getRuntime();
......