Test1.java(java homework)
public class Test1 {
public static void main(String[] args) {
//assignment
byte bval1 = 1, bval2 = 2;
short sval1 = 1, sval2 = 2;
int ival1 = 1, ival2 = 2;
long lval1 = 1, lval2 = 2;
float fval1 = 1.0f, fval2 = 2.0f;
double dval1 = 1.0, dval2 = 2.0;
char cval1 = 'a', cval2 = 'b';
boolean flag1 = false, flag2 = true;
//cast
lval1 = ival1;
dval1 = fval1;
fval1 =(float) dval1;
cval1 =(char) bval1;
}
}
Ïà¹ØÎĵµ£º
ʹÓÃJava²Ù×÷Îı¾ÎļþµÄ·½·¨Ïê½â
ÕªÒª: ×î³õjavaÊDz»Ö§³Ö¶ÔÎı¾ÎļþµÄ´¦ÀíµÄ£¬ÎªÁËÃÖ²¹Õâ¸öȱº¶¶øÒýÈëÁËReaderºÍWriterÁ½¸öÀ࣬ÕâÁ½¸öÀà¶¼ÊdzéÏóÀ࣬WriterÖÐ write(char[] ch,int off,int
length)£¬flush()ºÍclose()·½·¨Îª³éÏó·½·¨£¬ReaderÖÐread(char[] ch,int off,int length)ºÍclose()·½·¨ÊdzéÏó·½·¨¡£×ÓÀàÓ¦¸Ã·Ö± ......
1.javaµ÷ÓÃcmdÃüÁ
Runtime.getRuntime().exec("taskkill /f /im firefox.exe");
2.ʹÓÃÁËloadProp()·½·¨µ÷ÓÃjar°üÄÚµÄpropertiesÎļþ
ʹÓÃjava³ÌÐò¼à¿ØgeneFTP·þÎñÆ÷(ʹÓÃwindows¼Æ»®ÈÎÎñÖ´ÐÐjar°ü)£¬´úÂëÈçÏÂ:(¹¤³ÌĿ¼½á¹¹¼û¸½¼þ)
Task.java:
package com.monitor;
import java.io.BufferedReader;
import java ......
ParserAdapter£¬MouseInputAdapter....
interface can be added to an existing class or used to create an adapter
·½·¨¾ÍÊÇ ÃæÏò½á¹¹ÓïÑԵģºº¯Êý
javaÖÐÊÊÅäÆ÷µÄ×÷ÓÃʵ¼ÊÉÏÊÇʵÏÖÁ˽ӿڵÄÀ࣬µ«ÊÇÊÊÅäÆ÷ËùʵÏÖµÄÖ»Êǿշ½·¨¡£ÒòΪÈç¹ûÎÒÃDz»ÓÃÊÊÅäÆ÷£¬Ö±½ÓȥʵÏÖ½Ó¿Ú£¬Ò²ÒªÖð¸öʵÏÖÀïÃæµÄ·½·¨£¬²¢ÇÒ´ó¶àÇé¿öÏÂÎÒÃÇ ......
1¡¢Óï·¨£º±ØÐë±È½ÏÊìϤ£¬ÔÚд´úÂëµÄʱºòIDEµÄ±à¼Æ÷¶ÔijһÐб¨´íÓ¦¸ÃÄܹ»¸ù¾Ý±¨´íÐÅÏ¢ÖªµÀÊÇʲôÑùµÄÓï·¨´íÎó²¢ÇÒÖªµÀÈκÎÐÞÕý¡£
2¡¢ÃüÁ±ØÐëÊìϤJDK´øµÄһЩ³£ÓÃÃüÁî¼°Æä³£ÓÃÑ¡ÏÃüÁîÖÁÉÙÐèÒªÊìϤ£ºappletviewer¡¢ HtmlConverter¡¢jar¡¢ java¡¢javac¡¢javadoc¡¢javap¡¢javaw¡¢native2ascii¡¢serialver£¬Èç¹ûÕâЩÃüÁî ......