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  Class.forName("COM.ibm.db2.jdbc.app.DB2Driver").newInstance();
  String url="jdbc:db2:mydb"; //²»±ØÖ¸¶¨Ö÷»úÃûºÍ¶Ë¿ÚºÅ£¬Ö¸¶¨ÁË·´¶ø»á³ö´í        
  String user="*****";    
  String password="******";
  conn=DriverManager.getConnection(url,user,password);
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   st=(Statement) conn.createStatement();
   rs=st.executeQuery(query);


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public class FileTest{
public static void main(String[] args){
scan("c:/file/ss");
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public class Multicast{
public static void main (String[] args){
System.out.println((int)(char)(byte) -1);
}
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