3377N/A * Copyright (c) 1996, 2011, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * A <code>PrintStream</code> adds functionality to another output stream, 0N/A * namely the ability to print representations of various data values 0N/A * conveniently. Two other features are provided as well. Unlike other output 0N/A * streams, a <code>PrintStream</code> never throws an 0N/A * <code>IOException</code>; instead, exceptional situations merely set an 0N/A * internal flag that can be tested via the <code>checkError</code> method. 0N/A * Optionally, a <code>PrintStream</code> can be created so as to flush 0N/A * automatically; this means that the <code>flush</code> method is 0N/A * automatically invoked after a byte array is written, one of the 0N/A * <code>println</code> methods is invoked, or a newline character or byte 0N/A * (<code>'\n'</code>) is written. 0N/A * <p> All characters printed by a <code>PrintStream</code> are converted into 0N/A * bytes using the platform's default character encoding. The <code>{@link 0N/A * PrintWriter}</code> class should be used in situations that require writing 0N/A * characters rather than bytes. 0N/A * @author Frank Yellin 0N/A * @author Mark Reinhold 0N/A * Track both the text- and character-output streams, so that their buffers 0N/A * can be flushed without flushing the entire stream. 3479N/A * requireNonNull is explicitly declared here so as not to create an extra 3479N/A * dependency on java.util.Objects.requireNonNull. PrintStream is loaded 3377N/A * early during system initialization. 3377N/A * Returns a charset object for the given charset name. 3377N/A * @throws NullPointerException is csn is null 3377N/A * @throws UnsupportedEncodingException if the charset is not supported 3377N/A // UnsupportedEncodingException should be thrown 3377N/A /* Variant of the private constructor so that the given charset name 3377N/A * can be verified before evaluating the OutputStream argument. Used 3377N/A * by constructors creating a FileOutputStream that also take a 0N/A * Creates a new print stream. This stream will not flush automatically. 0N/A * @param out The output stream to which values and objects will be 0N/A * @see java.io.PrintWriter#PrintWriter(java.io.OutputStream) 0N/A * Creates a new print stream. 0N/A * @param out The output stream to which values and objects will be 0N/A * @param autoFlush A boolean; if true, the output buffer will be flushed 0N/A * whenever a byte array is written, one of the 0N/A * <code>println</code> methods is invoked, or a newline 0N/A * character or byte (<code>'\n'</code>) is written 0N/A * @see java.io.PrintWriter#PrintWriter(java.io.OutputStream, boolean) 0N/A * Creates a new print stream. 0N/A * @param out The output stream to which values and objects will be 0N/A * @param autoFlush A boolean; if true, the output buffer will be flushed 0N/A * whenever a byte array is written, one of the 0N/A * <code>println</code> methods is invoked, or a newline 0N/A * character or byte (<code>'\n'</code>) is written 0N/A * @param encoding The name of a supported 0N/A * character encoding</a> 0N/A * @throws UnsupportedEncodingException 0N/A * If the named encoding is not supported 0N/A * Creates a new print stream, without automatic line flushing, with the 0N/A * specified file name. This convenience constructor creates 0N/A * the necessary intermediate {@link java.io.OutputStreamWriter 0N/A * OutputStreamWriter}, which will encode characters using the 0N/A * {@linkplain java.nio.charset.Charset#defaultCharset() default charset} 0N/A * for this instance of the Java virtual machine. 0N/A * The name of the file to use as the destination of this print 0N/A * stream. If the file exists, then it will be truncated to 0N/A * zero size; otherwise, a new file will be created. The output 0N/A * will be written to the file and is buffered. 0N/A * @throws FileNotFoundException 0N/A * If the given file object does not denote an existing, writable 0N/A * regular file and a new regular file of that name cannot be 0N/A * created, or if some other error occurs while opening or 0N/A * @throws SecurityException 0N/A * If a security manager is present and {@link 0N/A * SecurityManager#checkWrite checkWrite(fileName)} denies write 0N/A * access to the file 0N/A * Creates a new print stream, without automatic line flushing, with the 0N/A * specified file name and charset. This convenience constructor creates 0N/A * the necessary intermediate {@link java.io.OutputStreamWriter 0N/A * OutputStreamWriter}, which will encode characters using the provided 0N/A * The name of the file to use as the destination of this print 0N/A * stream. If the file exists, then it will be truncated to 0N/A * zero size; otherwise, a new file will be created. The output 0N/A * will be written to the file and is buffered. 0N/A * The name of a supported {@linkplain java.nio.charset.Charset 0N/A * @throws FileNotFoundException 0N/A * If the given file object does not denote an existing, writable 0N/A * regular file and a new regular file of that name cannot be 0N/A * created, or if some other error occurs while opening or 0N/A * @throws SecurityException 0N/A * If a security manager is present and {@link 0N/A * SecurityManager#checkWrite checkWrite(fileName)} denies write 0N/A * access to the file 0N/A * @throws UnsupportedEncodingException 0N/A * If the named charset is not supported 3377N/A // ensure charset is checked before the file is opened 0N/A * Creates a new print stream, without automatic line flushing, with the 0N/A * specified file. This convenience constructor creates the necessary 0N/A * intermediate {@link java.io.OutputStreamWriter OutputStreamWriter}, 0N/A * which will encode characters using the {@linkplain 0N/A * java.nio.charset.Charset#defaultCharset() default charset} for this 0N/A * instance of the Java virtual machine. 0N/A * The file to use as the destination of this print stream. If the 0N/A * file exists, then it will be truncated to zero size; otherwise, 0N/A * a new file will be created. The output will be written to the 0N/A * file and is buffered. 0N/A * @throws FileNotFoundException 0N/A * If the given file object does not denote an existing, writable 0N/A * regular file and a new regular file of that name cannot be 0N/A * created, or if some other error occurs while opening or 0N/A * @throws SecurityException 0N/A * If a security manager is present and {@link 0N/A * SecurityManager#checkWrite checkWrite(file.getPath())} 0N/A * denies write access to the file 0N/A * Creates a new print stream, without automatic line flushing, with the 0N/A * specified file and charset. This convenience constructor creates 0N/A * the necessary intermediate {@link java.io.OutputStreamWriter 0N/A * OutputStreamWriter}, which will encode characters using the provided 0N/A * The file to use as the destination of this print stream. If the 0N/A * file exists, then it will be truncated to zero size; otherwise, 0N/A * a new file will be created. The output will be written to the 0N/A * file and is buffered. 0N/A * The name of a supported {@linkplain java.nio.charset.Charset 0N/A * @throws FileNotFoundException 0N/A * If the given file object does not denote an existing, writable 0N/A * regular file and a new regular file of that name cannot be 0N/A * created, or if some other error occurs while opening or 0N/A * @throws SecurityException 0N/A * If a security manager is presentand {@link 0N/A * SecurityManager#checkWrite checkWrite(file.getPath())} 0N/A * denies write access to the file 0N/A * @throws UnsupportedEncodingException 0N/A * If the named charset is not supported 3377N/A // ensure charset is checked before the file is opened 0N/A /** Check to make sure that the stream has not been closed */ 0N/A * Flushes the stream. This is done by writing any buffered output bytes to 0N/A * the underlying output stream and then flushing that stream. 0N/A * @see java.io.OutputStream#flush() 0N/A synchronized (
this) {
0N/A private boolean closing =
false;
/* To avoid recursive closing */ 0N/A * Closes the stream. This is done by flushing the stream and then closing 0N/A * the underlying output stream. 0N/A * @see java.io.OutputStream#close() 0N/A synchronized (
this) {
0N/A * Flushes the stream and checks its error state. The internal error state 0N/A * is set to <code>true</code> when the underlying output stream throws an 0N/A * <code>IOException</code> other than <code>InterruptedIOException</code>, 0N/A * and when the <code>setError</code> method is invoked. If an operation 0N/A * on the underlying output stream throws an 0N/A * <code>InterruptedIOException</code>, then the <code>PrintStream</code> 0N/A * converts the exception back into an interrupt by doing: 0N/A * Thread.currentThread().interrupt(); 0N/A * or the equivalent. 0N/A * @return <code>true</code> if and only if this stream has encountered an 0N/A * <code>IOException</code> other than 0N/A * <code>InterruptedIOException</code>, or the 0N/A * <code>setError</code> method has been invoked 0N/A * Sets the error state of the stream to <code>true</code>. 0N/A * <p> This method will cause subsequent invocations of {@link 0N/A * #checkError()} to return <tt>true</tt> until {@link 0N/A * #clearError()} is invoked. 0N/A * Clears the internal error state of this stream. 0N/A * <p> This method will cause subsequent invocations of {@link 0N/A * #checkError()} to return <tt>false</tt> until another write 0N/A * operation fails and invokes {@link #setError()}. 0N/A * Exception-catching, synchronized output operations, 0N/A * which also implement the write() methods of OutputStream 0N/A * Writes the specified byte to this stream. If the byte is a newline and 0N/A * automatic flushing is enabled then the <code>flush</code> method will be 0N/A * <p> Note that the byte is written as given; to write a character that 0N/A * will be translated according to the platform's default character 0N/A * encoding, use the <code>print(char)</code> or <code>println(char)</code> 0N/A * @param b The byte to be written 0N/A * @see #println(char) 0N/A synchronized (
this) {
0N/A * Writes <code>len</code> bytes from the specified byte array starting at 0N/A * offset <code>off</code> to this stream. If automatic flushing is 0N/A * enabled then the <code>flush</code> method will be invoked. 0N/A * <p> Note that the bytes will be written as given; to write characters 0N/A * that will be translated according to the platform's default character 0N/A * encoding, use the <code>print(char)</code> or <code>println(char)</code> 0N/A * @param buf A byte array 0N/A * @param off Offset from which to start taking bytes 0N/A * @param len Number of bytes to write 0N/A synchronized (
this) {
0N/A * The following private methods on the text- and character-output streams 0N/A * always flush the stream buffers, so that writes to the underlying byte 0N/A * stream occur as promptly as with the original PrintStream. 0N/A synchronized (
this) {
0N/A synchronized (
this) {
0N/A synchronized (
this) {
0N/A /* Methods that do not terminate lines */ 0N/A * Prints a boolean value. The string produced by <code>{@link 0N/A * java.lang.String#valueOf(boolean)}</code> is translated into bytes 0N/A * according to the platform's default character encoding, and these bytes 0N/A * are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param b The <code>boolean</code> to be printed 0N/A * Prints a character. The character is translated into one or more bytes 0N/A * according to the platform's default character encoding, and these bytes 0N/A * are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param c The <code>char</code> to be printed 0N/A * Prints an integer. The string produced by <code>{@link 0N/A * java.lang.String#valueOf(int)}</code> is translated into bytes 0N/A * according to the platform's default character encoding, and these bytes 0N/A * are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param i The <code>int</code> to be printed 0N/A * @see java.lang.Integer#toString(int) 0N/A * Prints a long integer. The string produced by <code>{@link 0N/A * java.lang.String#valueOf(long)}</code> is translated into bytes 0N/A * according to the platform's default character encoding, and these bytes 0N/A * are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param l The <code>long</code> to be printed 0N/A * @see java.lang.Long#toString(long) 0N/A * Prints a floating-point number. The string produced by <code>{@link 0N/A * java.lang.String#valueOf(float)}</code> is translated into bytes 0N/A * according to the platform's default character encoding, and these bytes 0N/A * are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param f The <code>float</code> to be printed 0N/A * @see java.lang.Float#toString(float) 0N/A * Prints a double-precision floating-point number. The string produced by 0N/A * <code>{@link java.lang.String#valueOf(double)}</code> is translated into 0N/A * bytes according to the platform's default character encoding, and these 0N/A * bytes are written in exactly the manner of the <code>{@link 0N/A * #write(int)}</code> method. 0N/A * @param d The <code>double</code> to be printed 0N/A * @see java.lang.Double#toString(double) 0N/A * Prints an array of characters. The characters are converted into bytes 0N/A * according to the platform's default character encoding, and these bytes 0N/A * are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param s The array of chars to be printed 0N/A * @throws NullPointerException If <code>s</code> is <code>null</code> 0N/A * Prints a string. If the argument is <code>null</code> then the string 0N/A * <code>"null"</code> is printed. Otherwise, the string's characters are 0N/A * converted into bytes according to the platform's default character 0N/A * encoding, and these bytes are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param s The <code>String</code> to be printed 0N/A * Prints an object. The string produced by the <code>{@link 0N/A * java.lang.String#valueOf(Object)}</code> method is translated into bytes 0N/A * according to the platform's default character encoding, and these bytes 0N/A * are written in exactly the manner of the 0N/A * <code>{@link #write(int)}</code> method. 0N/A * @param obj The <code>Object</code> to be printed 0N/A * @see java.lang.Object#toString() 0N/A /* Methods that do terminate lines */ 0N/A * Terminates the current line by writing the line separator string. The 0N/A * line separator string is defined by the system property 0N/A * <code>line.separator</code>, and is not necessarily a single newline 0N/A * character (<code>'\n'</code>). 0N/A * Prints a boolean and then terminate the line. This method behaves as 0N/A * though it invokes <code>{@link #print(boolean)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x The <code>boolean</code> to be printed 0N/A synchronized (
this) {
0N/A * Prints a character and then terminate the line. This method behaves as 0N/A * though it invokes <code>{@link #print(char)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x The <code>char</code> to be printed. 0N/A synchronized (
this) {
0N/A * Prints an integer and then terminate the line. This method behaves as 0N/A * though it invokes <code>{@link #print(int)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x The <code>int</code> to be printed. 0N/A synchronized (
this) {
0N/A * Prints a long and then terminate the line. This method behaves as 0N/A * though it invokes <code>{@link #print(long)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x a The <code>long</code> to be printed. 0N/A synchronized (
this) {
0N/A * Prints a float and then terminate the line. This method behaves as 0N/A * though it invokes <code>{@link #print(float)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x The <code>float</code> to be printed. 0N/A synchronized (
this) {
0N/A * Prints a double and then terminate the line. This method behaves as 0N/A * though it invokes <code>{@link #print(double)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x The <code>double</code> to be printed. 0N/A synchronized (
this) {
0N/A * Prints an array of characters and then terminate the line. This method 0N/A * behaves as though it invokes <code>{@link #print(char[])}</code> and 0N/A * then <code>{@link #println()}</code>. 0N/A * @param x an array of chars to print. 0N/A synchronized (
this) {
0N/A * Prints a String and then terminate the line. This method behaves as 0N/A * though it invokes <code>{@link #print(String)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x The <code>String</code> to be printed. 0N/A synchronized (
this) {
0N/A * Prints an Object and then terminate the line. This method calls 0N/A * at first String.valueOf(x) to get the printed object's string value, 0N/A * though it invokes <code>{@link #print(String)}</code> and then 0N/A * <code>{@link #println()}</code>. 0N/A * @param x The <code>Object</code> to be printed. 0N/A synchronized (
this) {
0N/A * A convenience method to write a formatted string to this output stream 0N/A * using the specified format string and arguments. 0N/A * <p> An invocation of this method of the form <tt>out.printf(format, 0N/A * args)</tt> behaves in exactly the same way as the invocation 0N/A * out.format(format, args) </pre> 0N/A * A format string as described in <a 0N/A * Arguments referenced by the format specifiers in the format 0N/A * string. If there are more arguments than format specifiers, the 0N/A * extra arguments are ignored. The number of arguments is 0N/A * variable and may be zero. The maximum number of arguments is 0N/A * limited by the maximum dimension of a Java array as defined by 4008N/A * <cite>The Java™ Virtual Machine Specification</cite>. 0N/A * <tt>null</tt> argument depends on the <a 0N/A * @throws IllegalFormatException 0N/A * If a format string contains an illegal syntax, a format 0N/A * specifier that is incompatible with the given arguments, 0N/A * insufficient arguments given the format string, or other 0N/A * illegal conditions. For specification of all possible 0N/A * formatting errors, see the <a 0N/A * formatter class specification. 0N/A * @throws NullPointerException 0N/A * If the <tt>format</tt> is <tt>null</tt> 0N/A * @return This output stream 0N/A * A convenience method to write a formatted string to this output stream 0N/A * using the specified format string and arguments. 0N/A * <p> An invocation of this method of the form <tt>out.printf(l, format, 0N/A * args)</tt> behaves in exactly the same way as the invocation 0N/A * out.format(l, format, args) </pre> 0N/A * The {@linkplain java.util.Locale locale} to apply during 0N/A * formatting. If <tt>l</tt> is <tt>null</tt> then no localization 0N/A * A format string as described in <a 0N/A * Arguments referenced by the format specifiers in the format 0N/A * string. If there are more arguments than format specifiers, the 0N/A * extra arguments are ignored. The number of arguments is 0N/A * variable and may be zero. The maximum number of arguments is 0N/A * limited by the maximum dimension of a Java array as defined by 4008N/A * <cite>The Java™ Virtual Machine Specification</cite>. 0N/A * <tt>null</tt> argument depends on the <a 0N/A * @throws IllegalFormatException 0N/A * If a format string contains an illegal syntax, a format 0N/A * specifier that is incompatible with the given arguments, 0N/A * insufficient arguments given the format string, or other 0N/A * illegal conditions. For specification of all possible 0N/A * formatting errors, see the <a 0N/A * formatter class specification. 0N/A * @throws NullPointerException 0N/A * If the <tt>format</tt> is <tt>null</tt> 0N/A * @return This output stream 0N/A * Writes a formatted string to this output stream using the specified 0N/A * format string and arguments. 0N/A * <p> The locale always used is the one returned by {@link 0N/A * java.util.Locale#getDefault() Locale.getDefault()}, regardless of any 0N/A * previous invocations of other formatting methods on this object. 0N/A * A format string as described in <a 0N/A * Arguments referenced by the format specifiers in the format 0N/A * string. If there are more arguments than format specifiers, the 0N/A * extra arguments are ignored. The number of arguments is 0N/A * variable and may be zero. The maximum number of arguments is 0N/A * limited by the maximum dimension of a Java array as defined by 4008N/A * <cite>The Java™ Virtual Machine Specification</cite>. 0N/A * <tt>null</tt> argument depends on the <a 0N/A * @throws IllegalFormatException 0N/A * If a format string contains an illegal syntax, a format 0N/A * specifier that is incompatible with the given arguments, 0N/A * insufficient arguments given the format string, or other 0N/A * illegal conditions. For specification of all possible 0N/A * formatting errors, see the <a 0N/A * formatter class specification. 0N/A * @throws NullPointerException 0N/A * If the <tt>format</tt> is <tt>null</tt> 0N/A * @return This output stream 0N/A synchronized (
this) {
0N/A * Writes a formatted string to this output stream using the specified 0N/A * format string and arguments. 0N/A * The {@linkplain java.util.Locale locale} to apply during 0N/A * formatting. If <tt>l</tt> is <tt>null</tt> then no localization 0N/A * A format string as described in <a 0N/A * Arguments referenced by the format specifiers in the format 0N/A * string. If there are more arguments than format specifiers, the 0N/A * extra arguments are ignored. The number of arguments is 0N/A * variable and may be zero. The maximum number of arguments is 0N/A * limited by the maximum dimension of a Java array as defined by 4008N/A * <cite>The Java™ Virtual Machine Specification</cite>. 0N/A * <tt>null</tt> argument depends on the <a 0N/A * @throws IllegalFormatException 0N/A * If a format string contains an illegal syntax, a format 0N/A * specifier that is incompatible with the given arguments, 0N/A * insufficient arguments given the format string, or other 0N/A * illegal conditions. For specification of all possible 0N/A * formatting errors, see the <a 0N/A * formatter class specification. 0N/A * @throws NullPointerException 0N/A * If the <tt>format</tt> is <tt>null</tt> 0N/A * @return This output stream 0N/A synchronized (
this) {
0N/A * Appends the specified character sequence to this output stream. 0N/A * <p> An invocation of this method of the form <tt>out.append(csq)</tt> 0N/A * behaves in exactly the same way as the invocation 0N/A * out.print(csq.toString()) </pre> 0N/A * <p> Depending on the specification of <tt>toString</tt> for the 0N/A * character sequence <tt>csq</tt>, the entire sequence may not be 0N/A * appended. For instance, invoking then <tt>toString</tt> method of a 0N/A * character buffer will return a subsequence whose content depends upon 0N/A * the buffer's position and limit. 0N/A * The character sequence to append. If <tt>csq</tt> is 0N/A * <tt>null</tt>, then the four characters <tt>"null"</tt> are 0N/A * appended to this output stream. 0N/A * @return This output stream 0N/A * Appends a subsequence of the specified character sequence to this output 0N/A * <p> An invocation of this method of the form <tt>out.append(csq, start, 0N/A * end)</tt> when <tt>csq</tt> is not <tt>null</tt>, behaves in 0N/A * exactly the same way as the invocation 0N/A * out.print(csq.subSequence(start, end).toString()) </pre> 0N/A * The character sequence from which a subsequence will be 0N/A * appended. If <tt>csq</tt> is <tt>null</tt>, then characters 0N/A * will be appended as if <tt>csq</tt> contained the four 0N/A * characters <tt>"null"</tt>. 0N/A * The index of the first character in the subsequence 0N/A * The index of the character following the last character in the 0N/A * @return This output stream 0N/A * @throws IndexOutOfBoundsException 0N/A * If <tt>start</tt> or <tt>end</tt> are negative, <tt>start</tt> 0N/A * is greater than <tt>end</tt>, or <tt>end</tt> is greater than 0N/A * <tt>csq.length()</tt> 0N/A * Appends the specified character to this output stream. 0N/A * <p> An invocation of this method of the form <tt>out.append(c)</tt> 0N/A * behaves in exactly the same way as the invocation 0N/A * out.print(c) </pre> 0N/A * The 16-bit character to append 0N/A * @return This output stream