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            Learn More About Java2 Professional Tutrial Vol.4 I-ichirow Suzuki

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	Learn More About Java2 Professional Tutrial

			Chapter 1 変数とオブジェクト
			Chapter 2 お約束とコメント
			Chapter 3 メソッドと基本制御
			Chapter 4 コンストラクタと初期化
			Chapter 5 クラスの再利用
			Chapter 6 継承
			Chapter 7 ポリモフィズム
			Chapter 8 インターフェイスとインナークラス
			Chapter 9 コレクション
			Chapter10 エラーハンドリング
		Chapter11 ファイル入出力
			Chapter12 Creating Windows AWT
			Chapter13 Creating Windows Swing
			Chapter14 Multiple Threads
			Chapter15 ネットワーク
			Chapter16 アルゴリズムとデータ構造



///////////////////////////////////////////////////////////////////////////////////////////
//// 	Chapter 11: ファイル入出力

//------------------------------------------------
// How to read from standard input.
import java.io.*;
public class Echo 
{
    public static void main(String[] args)
	throws IOException 
    {
	// KeyInput Ready...
	    BufferedReader in = new BufferedReader(
				    	new InputStreamReader(System.in));
	// Display out
	    String s;
	    while((s = in.readLine()).length() != 0)
	        System.out.println(s);
    }
} 

/**
Hello
Hello
Java
Java
*/


//------------------------------------------------
// Turn System.out into a PrintWriter.
import java.io.*;
public class ChangeSystemOut 
{
    public static void main(String[] args) 
    {
	    PrintWriter out = new PrintWriter(System.out, true);
	    out.println("Hello, world");
    }
} 

/**
Hello, world
*/


//------------------------------------------------
import java.io.*;
public class TestEOF 
{
    // Throw exceptions to console:
    public static void main(String[] args) 
	throws IOException 
    {
	// File Reading Ready...
    	DataInputStream in = new DataInputStream( 
    				new BufferedInputStream(
    				new FileInputStream("TestEof.java")));
	// File Reading and Display out
	while(in.available() != 0) 
		System.out.print((char)in.readByte());
    }
} 

/**
import java.io.*;
public class TestEOF 
{
    // Throw exceptions to console:
    public static void main(String[] args) 
	throws IOException 
    {
	// File Reading Ready...
    	DataInputStream in = new DataInputStream( 
    				new BufferedInputStream(
    				new FileInputStream("TestEof.java")));
	// File Reading and Display out
	while(in.available() != 0) 
		System.out.print((char)in.readByte());
    }
} 
*/


//------------------------------------------------
import java.io.*;
public class IOProblem 
{
    // Throw exceptions to console:
    public static void main(String[] args) throws IOException 
    {
	// File writing Ready...
	    DataOutputStream out = new DataOutputStream(
				        new BufferedOutputStream(
	            			new FileOutputStream("Data.txt")));
	// File writing
	    out.writeBytes("That was the value of pi\n");
	    out.writeBytes("This is pi/2:\n");
	    out.close();
	// File Reading Ready...
	    DataInputStream in = new DataInputStream(
			        	new BufferedInputStream(
	        			new FileInputStream("Data.txt")));
	// File Reading and Display out
	    while(in.available() != 0)
		System.out.print((char)in.readByte());
    }
} 

/**
That was the value of pi
This is pi/2:
*/



//------------------------------------------------
// Demonstrates standard I/O redirection.
import java.io.*;
class Redirecting 
{
    // Throw exceptions to console:
    public static void main(String[] args) throws IOException 
    {
	    BufferedInputStream in = 
	        new BufferedInputStream(
	        new FileInputStream("Redirecting.java"));
	    PrintStream out =
	        new PrintStream(
	        new BufferedOutputStream(
	            new FileOutputStream("test.out")));
	    System.setIn(in);
	    System.setOut(out);
	    System.setErr(out);
	    BufferedReader br = 
	        new BufferedReader(
	        new InputStreamReader(System.in));
	    String s;
	    while((s = br.readLine()) != null)
	        System.out.println(s);
	    out.close(); // Remember this!
    }
} 

/**
import java.io.*;
class Redirecting 
{
    // Throw exceptions to console:
    public static void main(String[] args) throws IOException 
    {
	    BufferedInputStream in = 
	        new BufferedInputStream(
	        new FileInputStream("Redirecting.java"));
	    PrintStream out =
	        new PrintStream(
	        new BufferedOutputStream(
	            new FileOutputStream("test.out")));
	    System.setIn(in);
	    System.setOut(out);
	    System.setErr(out);
	    BufferedReader br = 
	        new BufferedReader(
	        new InputStreamReader(System.in));
	    String s;
	    while((s = br.readLine()) != null)
	        System.out.println(s);
	    out.close(); // Remember this!
    }
} 
*/

//------------------------------------------------
// Uses GZIP compression to compress a file 
// whose name is passed on the command line.
import java.io.*;
import java.util.zip.*;

public class GZIPcompress 
{
    // Throw exceptions to console:
    public static void main(String[] args) throws IOException 
    {
	    BufferedReader in =
	        new BufferedReader(
	        new FileReader("GZIPcompress.java"));
	    BufferedOutputStream out =
	        new BufferedOutputStream(
	        new GZIPOutputStream(
	            new FileOutputStream("test.gz")));
	    System.out.println("Writing file");
	    int c;
	    while((c = in.read()) != -1)
	        out.write(c);
	    in.close();
	    out.close();
	    System.out.println("Reading file");
	    BufferedReader in2 =
	        new BufferedReader(
	        new InputStreamReader(
	            new GZIPInputStream(
	            new FileInputStream("test.gz"))));
	    String s;
	    while((s = in2.readLine()) != null)
	        System.out.println(s);
    }
} 

/**
import java.io.*;
import java.util.zip.*;

public class GZIPcompress 
{
    // Throw exceptions to console:
    public static void main(String[] args) throws IOException 
    {
	    BufferedReader in =
	        new BufferedReader(
	        new FileReader("GZIPcompress.java"));
	    BufferedOutputStream out =
	        new BufferedOutputStream(
	        new GZIPOutputStream(
	            new FileOutputStream("test.gz")));
	    System.out.println("Writing file");
	    int c;
	    while((c = in.read()) != -1)
	        out.write(c);
	    in.close();
	    out.close();
	    System.out.println("Reading file");
	    BufferedReader in2 =
	        new BufferedReader(
	        new InputStreamReader(
	            new GZIPInputStream(
	            new FileInputStream("test.gz"))));
	    String s;
	    while((s = in2.readLine()) != null)
	        System.out.println(s);
    }
} 
*/


//------------------------------------------------
import java.io.*;
// A serializable class.
class Alien implements Serializable 
{
} 

// Create a serialized output file.
public class FreezeAlien 
{
    // Throw exceptions to console:
    public static void main(String[] args) 
    	throws IOException, ClassNotFoundException 
    {
	    ObjectOutput out = 
	        new ObjectOutputStream(
	        new FileOutputStream("X.file"));
	    Alien zorcon = new Alien();
	    out.writeObject(zorcon); 
	    out.close() ;
	    ObjectInputStream in =
	        new ObjectInputStream(
	        new FileInputStream("X.file"));
	    Object mystery = in.readObject();
	    System.out.println(mystery.getClass());
    }
} 

/**
class Alien
*/







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