Admin: 1 версия

2010-06-01T06:02:32Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:43Z

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== ByteArrayInputStream Reset ==



<source lang="java">

import java.io.ByteArrayInputStream;
import java.io.IOException;
class MainClass {
public static void main(String args[]) throws IOException {
String tmp = "abc";
byte b[] = tmp.getBytes();
ByteArrayInputStream in = new ByteArrayInputStream(b);
for (int i = 0; i < 2; i++) {
int c;
while ((c = in.read()) != -1) {
if (i == 0) {
System.out.print((char) c);
} else {
System.out.print(Character.toUpperCase((char) c));
}
}
System.out.println();
in.reset();
}
}
}

</source>



== Byte Array IO ==



<source lang="java">

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class ByteArrayIOApp {
public static void main(String args[]) throws IOException {
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
String s = "This is a test.";
for (int i = 0; i < s.length(); ++i)
outStream.write(s.charAt(i));
System.out.println("outstream: " + outStream);
System.out.println("size: " + outStream.size());
ByteArrayInputStream inStream;
inStream = new ByteArrayInputStream(outStream.toByteArray());
int inBytes = inStream.available();
System.out.println("inStream has " + inBytes + " available bytes");
byte inBuf[] = new byte[inBytes];
int bytesRead = inStream.read(inBuf, 0, inBytes);
System.out.println(bytesRead + " bytes were read");
System.out.println("They are: " + new String(inBuf));
}
}

</source>



== Convert string into InputStream using ByteArrayInputStream class. ==



<source lang="java">

import java.io.ByteArrayInputStream;
import java.io.InputStream;
public class Main {
public static void main(String[] args)throws Exception {
String text = "Converting String to InputStream Example";
InputStream is = new ByteArrayInputStream(text.getBytes("UTF-8"));
}
}

</source>



== Demonstrate ByteArrayInputStream ==



<source lang="java">

import java.io.ByteArrayInputStream;
import java.io.IOException;
class ByteArrayInputStreamDemo {
public static void main(String args[]) throws IOException {
String tmp = "abcdefghijklmnopqrstuvwxyz";
byte b[] = tmp.getBytes();
ByteArrayInputStream input1 = new ByteArrayInputStream(b);
ByteArrayInputStream input2 = new ByteArrayInputStream(b, 0, 3);
}
}

</source>



== Read ByteArrayInputStream to String ==



<source lang="java">

import java.io.ByteArrayInputStream;
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
* own identifying information: Portions Copyright [yyyy]
* [name of copyright owner]
*/
/*
* @(#)ASCIIUtility.java 1.10 05/08/29
*
* Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
*/
public class Utils {
public static String toString(ByteArrayInputStream is) {
int size = is.available();
char[] theChars = new char[size];
byte[] bytes = new byte[size];
is.read(bytes, 0, size);
for (int i = 0; i < size;)
theChars[i] = (char)(bytes[i++]&0xff);

return new String(theChars);
}
}

</source>

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Java/File Input Output/ByteArrayInputStream - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010