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1.±à³Ì½ç×îÖøÃûµÄÒ»¾ä»°“Hello world!”,ÈκÎÒ»¸ö³ÌÐòÔ±Æð²½Ê±±ØÓöµÄÓï¾ä
public class HelloWorld {

public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.print("Hello World!");
}
}
2.¸ù¾ÝÌáʾÊäÈëÁ½¸öÕûÊý£¬Êä³öÕûÊýµÄºÍ£¬×î»ù´¡µÄ³ÌÐò£¬³õѧÕßÐè¶®µÃScannerµÄÓ÷¨
import java.util.Scanner;
public class AddTwoInteger {
public static void main(String[] args) {
// TODO Auto-generated method stub
    int integer1;
    int integer2;
    int sum;
Scanner input=new Scanner(System.in);
System.out.print("Enter first integer:");
      integer1=input.nextInt();
System.out.print("Enter second integer:");
      integer2=input.nextInt(); 
      sum=integer1+integer2;
 System.out.printf("%d",sum);      
      
}
}
3.ÅжϴóСµÄ³ÌÐò£¬Õâ¸ö³ÌÐòҲûɶ¿É˵µÄ£¬Î¨Ò»ÌáÐѵÄÊÇ£ºÔÚÅжϴóСµÄʱºò£¨ÏàµÈµÄÇé¿ö£©²»Òª°Ñ“==“´íд³É=£¬ÕâÊÇ×î³£¼ûµÄ´íÎó¡£
import java.util.Scanner;
public class Comparision {

public static void main(String[] args) {
// TODO Auto-generated method stub
    int integer1;
    int integer2;
   
Scanner input=new Scanner(System.in);
System.out.print("Enter first integer:");
      integer1=input.nextInt();
System.out.print("Enter second integer:");
      integer2=input.nextInt(); 
      if(integer1>integer2) &nb


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Java Network Game Programming

game
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Pair ......

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import java.util.Scanner;
public class Game{
  void welcome(){
   println("»¶Ó­À´µ½¼ôµ¶Ê¯Í·²¼ÓÎÏ·");
  }
 Choice getUserChoice(){
  println("ÇëÑ¡Ôñ\t[1]¼ôµ¶\t[2]ʯͷ\t[3]²¼");
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package OALogic.sql.data;
import java.io.*;
public class FileOperate {
   public FileOperate() {
   }
  
   public static void main(String args[]){
       newFolder("D:/100");
   }
   /**
  ......

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