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DOS/V Power Report 1998 February
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StringWriter.java
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1997-10-27
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/*
* @(#)StringWriter.java 1.5 97/01/27
*
* Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
* CopyrightVersion 1.1_beta
*
*/
package java.io;
/**
* A character stream that collects its output in a string buffer, which can
* then be used to construct a string.
*
* @version 1.5, 97/01/27
* @author Mark Reinhold
* @since JDK1.1
*/
public class StringWriter extends Writer {
private StringBuffer buf;
/**
* Create a new string writer, using the default initial string-buffer
* size.
*/
public StringWriter() {
buf = new StringBuffer();
lock = buf;
}
/**
* Create a new string writer, using the specified initial string-buffer
* size.
*/
protected StringWriter(int initialSize) {
buf = new StringBuffer(initialSize);
lock = buf;
}
/**
* Write a single character.
*/
public void write(int c) {
buf.append((char) c);
}
/**
* Write a portion of an array of characters.
*
* @param cbuf Array of characters
* @param off Offset from which to start writing characters
* @param len Number of characters to write
*/
public void write(char cbuf[], int off, int len) {
buf.append(cbuf, off, len);
}
/**
* Write a string.
*/
public void write(String str) {
buf.append(str);
}
/**
* Write a portion of a string.
*
* @param str String to be written
* @param off Offset from which to start writing characters
* @param len Number of characters to write
*/
public void write(String str, int off, int len) {
char cbuf[] = new char[len];
str.getChars(off, len, cbuf, 0);
buf.append(cbuf);
}
/**
* Return the buffer's current value as a string.
*/
public String toString() {
return buf.toString();
}
/**
* Return the string buffer itself.
*/
public StringBuffer getBuffer() {
return buf;
}
/**
* Flush the stream.
*/
public void flush() { }
/**
* Close the stream. This method does not release the buffer, since its
* contents might still be required.
*/
public void close() { }
}