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import java.io.*;
class ByteArrayOutputStreamDemo {
public static void main(String args[]) throws IOException {
ByteArrayOutputStream f = new ByteArrayOutputStream();
String s = "This should end up in the array";
byte buf[] = s.getBytes();
f.write(buf);
System.out.println("Buffer as a string");
System.out.println(f.toString());
System.out.println("Into array");
byte b[] = f.toByteArray();
for (int i=0; i<b.length; i++) {
System.out.print((char) b[i]);}
System.out.println("\nTo an OutputStream()");
//Êä³öµ½Îļþtest.txtÖÐ
OutputStream f2 = new FileOutputStream("test.txt");
f.writeTo(f2);
f2.close();
System.out.println("Doing a reset");
f.reset();
for (int i=0; i<3; i++)
f.write('X');
System.out.println(f.toString());}}
//×Ö·ûÁ÷µÄÀý×Ó£¬ÒÔReaderÓëWriterΪ»ù´¡Àà
import java.io.*;
public class CharArrayReaderDemo {
public static void main(String args[]) throws IOException {
String tmp = "abcdefghijklmnopqrstuvwxyz";
int length = tmp.length();
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н¨Ä¿Â¼<%@ page contentType="text/html;charset=gb2312"%>
<%
//String URL = request.getRequestURI();
String filePath="C:\\²âÊÔ\\";
filePath=filePath.toString(); ......
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Random;
public class ShuffleTest {
public static void main(String args[]) {
String simpsons[ ......
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//LogProxy.java
package com.gc.action;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
public class LogProxy implements InvocationHandler{
private ......
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package JFFileEncrypt;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
/**
* ¹¦ÄÜ£º¶ÔÎļþ¼ÓÃܽâÃܲÙ×÷
* @author jiangfeng
*
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