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public class Test{
public static void main(String args[]){
System.out.println(0.05+0.01);
System.out.println(1.0-0.42);
System.out.println(4.015*100);
System.out.println(123.3/100);
}
};
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0.060000000000000005
0.5800000000000001
401.49999999999994
1.2329999999999999
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public double round(double value){&
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¡¡ ¡¡protected byte[] encrypt(byte[] obj) ...{
¡¡¡¡try ...{
¡¡¡¡MessageDigest md5 = MessageDigest.getInstance("MD5");
¡¡¡¡md5.update(obj);
¡¡¡¡return md5.digest();
¡¡¡¡} catch (NoSuchAlgorithmException e) ...{
¡¡¡¡e.printStackTrace();
¡ ......
package testPackage;
class Test {
public static void main(String[] args) {
String hello = "Hello", lo = "lo";
System.out.print((hello == "Hello") + " ");
System.out.print((Other.hello == hello) + " ");
System.out.print((other.Other.hello == hello) + " ");
System.out.print((hello == ("Hel"+"lo ......
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import java.io.File;
public class ListFile {
public static void main(String[] args) {
// TODO Auto-generated method stub
String path = "C:/Inetpub";
File f = new File(path);
list(f);
}
publ ......
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1. LibSVMÔÚweka3.5°æÒÔºó¶¼¼¯³ÉÁ˰ü×°£¬ÎÞÐëÔÙʹÓÃWLSVM£¬ËùÒÔÉÏÎÄÖеÄWLSVMÏà¹ØµÄÄÚÈÝ¿ÉÒÔÈ¥³ý£¬¶øÀàÐÍWLSVM¿ÉÒÔ»»³ÉLibSVM£¬ÐèÒªÌí¼Ó°ü
import weka.classifiers.functions.LibSVM;
ÎÞ ......
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package com.nffish.util;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import com.nffish.c ......