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import java.io.FileWriter;
import java.io.IOException;
import java.io.RandomAccessFile;
/**
* ½«ÄÚÈÝ×·¼Óµ½Îļþβ²¿
*/
public class AppendToFile
{
/**
* A·½·¨×·¼ÓÎļþ£ºÊ¹ÓÃRandomAccessFile
*
* @param fileName
* ÎļþÃû
* @param content
* ×·¼ÓµÄÄÚÈÝ
*/
public static void appendMethodA(String fileName, String content)
{
try
{
// ´ò¿ªÒ»¸öËæ»ú·ÃÎÊÎļþÁ÷£¬°´¶Áд·½Ê½
RandomAccessFile randomFile = new RandomAccessFile(fileName, "rw");
// Îļþ³¤¶È£¬×Ö½ÚÊý
long fileLength = randomFile.length();
// ½«Ð´ÎļþÖ¸ÕëÒÆµ½Îļþβ¡£
randomFile.seek(fileLength);
randomFile.writeBytes(content);
randomFile.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
/**
* B·½·¨×·¼ÓÎļþ£ºÊ¹ÓÃFileWriter
*
* @param fileName
* @param content
*/
public static void appendMethodB(String fileName, String content)
{
try
{
// ´ò¿ªÒ»¸öдÎļþÆ÷£¬¹¹Ô캯ÊýÖеĵڶþ¸ö²ÎÊýtrue±íʾÒÔ×·¼ÓÐÎʽдÎļþ
FileWriter writer = new FileWriter(fileName, true);
writer.write(content);
writer.clos
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import java.io.*;
class Exec{
public static void main(String []args)throws IOException{
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String command = "ls -l";
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import java.rmi.*;
public interface HelloIn extends java.rmi.Remote{
String sayHello() throws RemoteException;
}
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import java.rmi.*;
import java.net.*;
import java.rmi.registry.*;
import java.rmi.server.*;
public class Hello exten ......
import java.io.UnsupportedEncodingException;
public class T {
public static void main(String[] args) throws UnsupportedEncodingException {
t1();//ASCIIת»»Îª×Ö·û´®
t2();//×Ö·û´®×ª»»ÎªASCIIÂë
}
public static void t1(){//ASCIIת»»Îª×Ö·û´®
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import java.io.IOException;
class Exec_Javac{
public static void main(String []args)throws IO ......