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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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java/pkg/java/io/DataInputStream.java+663−0
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1+/*
2+ * Copyright (c) 1994, 2006, Oracle and/or its affiliates. All rights reserved.
3+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4+ *
5+ * This code is free software; you can redistribute it and/or modify it
6+ * under the terms of the GNU General Public License version 2 only, as
7+ * published by the Free Software Foundation. Oracle designates this
8+ * particular file as subject to the "Classpath" exception as provided
9+ * by Oracle in the LICENSE file that accompanied this code.
10+ *
11+ * This code is distributed in the hope that it will be useful, but WITHOUT
12+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14+ * version 2 for more details (a copy is included in the LICENSE file that
15+ * accompanied this code).
16+ *
17+ * You should have received a copy of the GNU General Public License version
18+ * 2 along with this work; if not, write to the Free Software Foundation,
19+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20+ *
21+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22+ * or visit www.oracle.com if you need additional information or have any
23+ * questions.
24+ */
25+
26+package java.io;
27+
28+/**
29+ * A data input stream lets an application read primitive Java data
30+ * types from an underlying input stream in a machine-independent
31+ * way. An application uses a data output stream to write data that
32+ * can later be read by a data input stream.
33+ * <p>
34+ * DataInputStream is not necessarily safe for multithreaded access.
35+ * Thread safety is optional and is the responsibility of users of
36+ * methods in this class.
37+ *
38+ * @author Arthur van Hoff
39+ * @see java.io.DataOutputStream
40+ * @since JDK1.0
41+ */
42+public
43+class DataInputStream extends FilterInputStream implements DataInput {
44+
45+ /**
46+ * Creates a DataInputStream that uses the specified
47+ * underlying InputStream.
48+ *
49+ * @param in the specified input stream
50+ */
51+ public DataInputStream(InputStream in) {
52+ super(in);
53+ }
54+
55+ /**
56+ * working arrays initialized on demand by readUTF
57+ */
58+ private byte bytearr[] = new byte[80];
59+ private char chararr[] = new char[80];
60+
61+ /**
62+ * Reads some number of bytes from the contained input stream and
63+ * stores them into the buffer array <code>b</code>. The number of
64+ * bytes actually read is returned as an integer. This method blocks
65+ * until input data is available, end of file is detected, or an
66+ * exception is thrown.
67+ *
68+ * <p>If <code>b</code> is null, a <code>NullPointerException</code> is
69+ * thrown. If the length of <code>b</code> is zero, then no bytes are
70+ * read and <code>0</code> is returned; otherwise, there is an attempt
71+ * to read at least one byte. If no byte is available because the
72+ * stream is at end of file, the value <code>-1</code> is returned;
73+ * otherwise, at least one byte is read and stored into <code>b</code>.
74+ *
75+ * <p>The first byte read is stored into element <code>b[0]</code>, the
76+ * next one into <code>b[1]</code>, and so on. The number of bytes read
77+ * is, at most, equal to the length of <code>b</code>. Let <code>k</code>
78+ * be the number of bytes actually read; these bytes will be stored in
79+ * elements <code>b[0]</code> through <code>b[k-1]</code>, leaving
80+ * elements <code>b[k]</code> through <code>b[b.length-1]</code>
81+ * unaffected.
82+ *
83+ * <p>The <code>read(b)</code> method has the same effect as:
84+ * <blockquote><pre>
85+ * read(b, 0, b.length)
86+ * </pre></blockquote>
87+ *
88+ * @param b the buffer into which the data is read.
89+ * @return the total number of bytes read into the buffer, or
90+ * <code>-1</code> if there is no more data because the end
91+ * of the stream has been reached.
92+ * @exception IOException if the first byte cannot be read for any reason
93+ * other than end of file, the stream has been closed and the underlying
94+ * input stream does not support reading after close, or another I/O
95+ * error occurs.
96+ * @see java.io.FilterInputStream#in
97+ * @see java.io.InputStream#read(byte[], int, int)
98+ */
99+ public final int read(byte b[]) throws IOException {
100+ return in.read(b, 0, b.length);
101+ }
102+
103+ /**
104+ * Reads up to <code>len</code> bytes of data from the contained
105+ * input stream into an array of bytes. An attempt is made to read
106+ * as many as <code>len</code> bytes, but a smaller number may be read,
107+ * possibly zero. The number of bytes actually read is returned as an
108+ * integer.
109+ *
110+ * <p> This method blocks until input data is available, end of file is
111+ * detected, or an exception is thrown.
112+ *
113+ * <p> If <code>len</code> is zero, then no bytes are read and
114+ * <code>0</code> is returned; otherwise, there is an attempt to read at
115+ * least one byte. If no byte is available because the stream is at end of
116+ * file, the value <code>-1</code> is returned; otherwise, at least one
117+ * byte is read and stored into <code>b</code>.
118+ *
119+ * <p> The first byte read is stored into element <code>b[off]</code>, the
120+ * next one into <code>b[off+1]</code>, and so on. The number of bytes read
121+ * is, at most, equal to <code>len</code>. Let <i>k</i> be the number of
122+ * bytes actually read; these bytes will be stored in elements
123+ * <code>b[off]</code> through <code>b[off+</code><i>k</i><code>-1]</code>,
124+ * leaving elements <code>b[off+</code><i>k</i><code>]</code> through
125+ * <code>b[off+len-1]</code> unaffected.
126+ *
127+ * <p> In every case, elements <code>b[0]</code> through
128+ * <code>b[off]</code> and elements <code>b[off+len]</code> through
129+ * <code>b[b.length-1]</code> are unaffected.
130+ *
131+ * @param b the buffer into which the data is read.
132+ * @param off the start offset in the destination array <code>b</code>
133+ * @param len the maximum number of bytes read.
134+ * @return the total number of bytes read into the buffer, or
135+ * <code>-1</code> if there is no more data because the end
136+ * of the stream has been reached.
137+ * @exception NullPointerException If <code>b</code> is <code>null</code>.
138+ * @exception IndexOutOfBoundsException If <code>off</code> is negative,
139+ * <code>len</code> is negative, or <code>len</code> is greater than
140+ * <code>b.length - off</code>
141+ * @exception IOException if the first byte cannot be read for any reason
142+ * other than end of file, the stream has been closed and the underlying
143+ * input stream does not support reading after close, or another I/O
144+ * error occurs.
145+ * @see java.io.FilterInputStream#in
146+ * @see java.io.InputStream#read(byte[], int, int)
147+ */
148+ public final int read(byte b[], int off, int len) throws IOException {
149+ return in.read(b, off, len);
150+ }
151+
152+ /**
153+ * See the general contract of the <code>readFully</code>
154+ * method of <code>DataInput</code>.
155+ * <p>
156+ * Bytes
157+ * for this operation are read from the contained
158+ * input stream.
159+ *
160+ * @param b the buffer into which the data is read.
161+ * @exception EOFException if this input stream reaches the end before
162+ * reading all the bytes.
163+ * @exception IOException the stream has been closed and the contained
164+ * input stream does not support reading after close, or
165+ * another I/O error occurs.
166+ * @see java.io.FilterInputStream#in
167+ */
168+ public final void readFully(byte b[]) throws IOException {
169+ readFully(b, 0, b.length);
170+ }
171+
172+ /**
173+ * See the general contract of the <code>readFully</code>
174+ * method of <code>DataInput</code>.
175+ * <p>
176+ * Bytes
177+ * for this operation are read from the contained
178+ * input stream.
179+ *
180+ * @param b the buffer into which the data is read.
181+ * @param off the start offset of the data.
182+ * @param len the number of bytes to read.
183+ * @exception EOFException if this input stream reaches the end before
184+ * reading all the bytes.
185+ * @exception IOException the stream has been closed and the contained
186+ * input stream does not support reading after close, or
187+ * another I/O error occurs.
188+ * @see java.io.FilterInputStream#in
189+ */
190+ public final void readFully(byte b[], int off, int len) throws IOException {
191+ if (len < 0)
192+ throw new IndexOutOfBoundsException();
193+ int n = 0;
194+ while (n < len) {
195+ int count = in.read(b, off + n, len - n);
196+ if (count < 0)
197+ throw new EOFException();
198+ n += count;
199+ }
200+ }
201+
202+ /**
203+ * See the general contract of the <code>skipBytes</code>
204+ * method of <code>DataInput</code>.
205+ * <p>
206+ * Bytes for this operation are read from the contained
207+ * input stream.
208+ *
209+ * @param n the number of bytes to be skipped.
210+ * @return the actual number of bytes skipped.
211+ * @exception IOException if the contained input stream does not support
212+ * seek, or the stream has been closed and
213+ * the contained input stream does not support
214+ * reading after close, or another I/O error occurs.
215+ */
216+ public final int skipBytes(int n) throws IOException {
217+ int total = 0;
218+ int cur = 0;
219+
220+ while ((total<n) && ((cur = (int) in.skip(n-total)) > 0)) {
221+ total += cur;
222+ }
223+
224+ return total;
225+ }
226+
227+ /**
228+ * See the general contract of the <code>readBoolean</code>
229+ * method of <code>DataInput</code>.
230+ * <p>
231+ * Bytes for this operation are read from the contained
232+ * input stream.
233+ *
234+ * @return the <code>boolean</code> value read.
235+ * @exception EOFException if this input stream has reached the end.
236+ * @exception IOException the stream has been closed and the contained
237+ * input stream does not support reading after close, or
238+ * another I/O error occurs.
239+ * @see java.io.FilterInputStream#in
240+ */
241+ public final boolean readBoolean() throws IOException {
242+ int ch = in.read();
243+ if (ch < 0)
244+ throw new EOFException();
245+ return (ch != 0);
246+ }
247+
248+ /**
249+ * See the general contract of the <code>readByte</code>
250+ * method of <code>DataInput</code>.
251+ * <p>
252+ * Bytes
253+ * for this operation are read from the contained
254+ * input stream.
255+ *
256+ * @return the next byte of this input stream as a signed 8-bit
257+ * <code>byte</code>.
258+ * @exception EOFException if this input stream has reached the end.
259+ * @exception IOException the stream has been closed and the contained
260+ * input stream does not support reading after close, or
261+ * another I/O error occurs.
262+ * @see java.io.FilterInputStream#in
263+ */
264+ public final byte readByte() throws IOException {
265+ int ch = in.read();
266+ if (ch < 0)
267+ throw new EOFException();
268+ return (byte)(ch);
269+ }
270+
271+ /**
272+ * See the general contract of the <code>readUnsignedByte</code>
273+ * method of <code>DataInput</code>.
274+ * <p>
275+ * Bytes
276+ * for this operation are read from the contained
277+ * input stream.
278+ *
279+ * @return the next byte of this input stream, interpreted as an
280+ * unsigned 8-bit number.
281+ * @exception EOFException if this input stream has reached the end.
282+ * @exception IOException the stream has been closed and the contained
283+ * input stream does not support reading after close, or
284+ * another I/O error occurs.
285+ * @see java.io.FilterInputStream#in
286+ */
287+ public final int readUnsignedByte() throws IOException {
288+ int ch = in.read();
289+ if (ch < 0)
290+ throw new EOFException();
291+ return ch;
292+ }
293+
294+ /**
295+ * See the general contract of the <code>readShort</code>
296+ * method of <code>DataInput</code>.
297+ * <p>
298+ * Bytes
299+ * for this operation are read from the contained
300+ * input stream.
301+ *
302+ * @return the next two bytes of this input stream, interpreted as a
303+ * signed 16-bit number.
304+ * @exception EOFException if this input stream reaches the end before
305+ * reading two bytes.
306+ * @exception IOException the stream has been closed and the contained
307+ * input stream does not support reading after close, or
308+ * another I/O error occurs.
309+ * @see java.io.FilterInputStream#in
310+ */
311+ public final short readShort() throws IOException {
312+ int ch1 = in.read();
313+ int ch2 = in.read();
314+ if ((ch1 | ch2) < 0)
315+ throw new EOFException();
316+ return (short)((ch1 << 8) + (ch2 << 0));
317+ }
318+
319+ /**
320+ * See the general contract of the <code>readUnsignedShort</code>
321+ * method of <code>DataInput</code>.
322+ * <p>
323+ * Bytes
324+ * for this operation are read from the contained
325+ * input stream.
326+ *
327+ * @return the next two bytes of this input stream, interpreted as an
328+ * unsigned 16-bit integer.
329+ * @exception EOFException if this input stream reaches the end before
330+ * reading two bytes.
331+ * @exception IOException the stream has been closed and the contained
332+ * input stream does not support reading after close, or
333+ * another I/O error occurs.
334+ * @see java.io.FilterInputStream#in
335+ */
336+ public final int readUnsignedShort() throws IOException {
337+ int ch1 = in.read();
338+ int ch2 = in.read();
339+ if ((ch1 | ch2) < 0)
340+ throw new EOFException();
341+ return (ch1 << 8) + (ch2 << 0);
342+ }
343+
344+ /**
345+ * See the general contract of the <code>readChar</code>
346+ * method of <code>DataInput</code>.
347+ * <p>
348+ * Bytes
349+ * for this operation are read from the contained
350+ * input stream.
351+ *
352+ * @return the next two bytes of this input stream, interpreted as a
353+ * <code>char</code>.
354+ * @exception EOFException if this input stream reaches the end before
355+ * reading two bytes.
356+ * @exception IOException the stream has been closed and the contained
357+ * input stream does not support reading after close, or
358+ * another I/O error occurs.
359+ * @see java.io.FilterInputStream#in
360+ */
361+ public final char readChar() throws IOException {
362+ int ch1 = in.read();
363+ int ch2 = in.read();
364+ if ((ch1 | ch2) < 0)
365+ throw new EOFException();
366+ return (char)((ch1 << 8) + (ch2 << 0));
367+ }
368+
369+ /**
370+ * See the general contract of the <code>readInt</code>
371+ * method of <code>DataInput</code>.
372+ * <p>
373+ * Bytes
374+ * for this operation are read from the contained
375+ * input stream.
376+ *
377+ * @return the next four bytes of this input stream, interpreted as an
378+ * <code>int</code>.
379+ * @exception EOFException if this input stream reaches the end before
380+ * reading four bytes.
381+ * @exception IOException the stream has been closed and the contained
382+ * input stream does not support reading after close, or
383+ * another I/O error occurs.
384+ * @see java.io.FilterInputStream#in
385+ */
386+ public final int readInt() throws IOException {
387+ int ch1 = in.read();
388+ int ch2 = in.read();
389+ int ch3 = in.read();
390+ int ch4 = in.read();
391+ if ((ch1 | ch2 | ch3 | ch4) < 0)
392+ throw new EOFException();
393+ return ((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + (ch4 << 0));
394+ }
395+
396+ private byte readBuffer[] = new byte[8];
397+
398+ /**
399+ * See the general contract of the <code>readLong</code>
400+ * method of <code>DataInput</code>.
401+ * <p>
402+ * Bytes
403+ * for this operation are read from the contained
404+ * input stream.
405+ *
406+ * @return the next eight bytes of this input stream, interpreted as a
407+ * <code>long</code>.
408+ * @exception EOFException if this input stream reaches the end before
409+ * reading eight bytes.
410+ * @exception IOException the stream has been closed and the contained
411+ * input stream does not support reading after close, or
412+ * another I/O error occurs.
413+ * @see java.io.FilterInputStream#in
414+ */
415+ public final long readLong() throws IOException {
416+ readFully(readBuffer, 0, 8);
417+ return (((long)readBuffer[0] << 56) +
418+ ((long)(readBuffer[1] & 255) << 48) +
419+ ((long)(readBuffer[2] & 255) << 40) +
420+ ((long)(readBuffer[3] & 255) << 32) +
421+ ((long)(readBuffer[4] & 255) << 24) +
422+ ((readBuffer[5] & 255) << 16) +
423+ ((readBuffer[6] & 255) << 8) +
424+ ((readBuffer[7] & 255) << 0));
425+ }
426+
427+ /**
428+ * See the general contract of the <code>readFloat</code>
429+ * method of <code>DataInput</code>.
430+ * <p>
431+ * Bytes
432+ * for this operation are read from the contained
433+ * input stream.
434+ *
435+ * @return the next four bytes of this input stream, interpreted as a
436+ * <code>float</code>.
437+ * @exception EOFException if this input stream reaches the end before
438+ * reading four bytes.
439+ * @exception IOException the stream has been closed and the contained
440+ * input stream does not support reading after close, or
441+ * another I/O error occurs.
442+ * @see java.io.DataInputStream#readInt()
443+ * @see java.lang.Float#intBitsToFloat(int)
444+ */
445+ public final float readFloat() throws IOException {
446+ return Float.intBitsToFloat(readInt());
447+ }
448+
449+ /**
450+ * See the general contract of the <code>readDouble</code>
451+ * method of <code>DataInput</code>.
452+ * <p>
453+ * Bytes
454+ * for this operation are read from the contained
455+ * input stream.
456+ *
457+ * @return the next eight bytes of this input stream, interpreted as a
458+ * <code>double</code>.
459+ * @exception EOFException if this input stream reaches the end before
460+ * reading eight bytes.
461+ * @exception IOException the stream has been closed and the contained
462+ * input stream does not support reading after close, or
463+ * another I/O error occurs.
464+ * @see java.io.DataInputStream#readLong()
465+ * @see java.lang.Double#longBitsToDouble(long)
466+ */
467+ public final double readDouble() throws IOException {
468+ return Double.longBitsToDouble(readLong());
469+ }
470+
471+ private char lineBuffer[];
472+
473+ /**
474+ * See the general contract of the <code>readLine</code>
475+ * method of <code>DataInput</code>.
476+ * <p>
477+ * Bytes
478+ * for this operation are read from the contained
479+ * input stream.
480+ *
481+ * @deprecated This method does not properly convert bytes to characters.
482+ * As of JDK&nbsp;1.1, the preferred way to read lines of text is via the
483+ * <code>BufferedReader.readLine()</code> method. Programs that use the
484+ * <code>DataInputStream</code> class to read lines can be converted to use
485+ * the <code>BufferedReader</code> class by replacing code of the form:
486+ * <blockquote><pre>
487+ * DataInputStream d =&nbsp;new&nbsp;DataInputStream(in);
488+ * </pre></blockquote>
489+ * with:
490+ * <blockquote><pre>
491+ * BufferedReader d
492+ * =&nbsp;new&nbsp;BufferedReader(new&nbsp;InputStreamReader(in));
493+ * </pre></blockquote>
494+ *
495+ * @return the next line of text from this input stream.
496+ * @exception IOException if an I/O error occurs.
497+ * @see java.io.BufferedReader#readLine()
498+ * @see java.io.FilterInputStream#in
499+ */
500+ @Deprecated
501+ public final String readLine() throws IOException {
502+ char buf[] = lineBuffer;
503+
504+ if (buf == null) {
505+ buf = lineBuffer = new char[128];
506+ }
507+
508+ int room = buf.length;
509+ int offset = 0;
510+ int c;
511+
512+loop: while (true) {
513+ switch (c = in.read()) {
514+ case -1:
515+ case '\n':
516+ break loop;
517+
518+ case '\r':
519+ int c2 = in.read();
520+ if ((c2 != '\n') && (c2 != -1)) {
521+ if (!(in instanceof PushbackInputStream)) {
522+ this.in = new PushbackInputStream(in);
523+ }
524+ ((PushbackInputStream)in).unread(c2);
525+ }
526+ break loop;
527+
528+ default:
529+ if (--room < 0) {
530+ buf = new char[offset + 128];
531+ room = buf.length - offset - 1;
532+ System.arraycopy(lineBuffer, 0, buf, 0, offset);
533+ lineBuffer = buf;
534+ }
535+ buf[offset++] = (char) c;
536+ break;
537+ }
538+ }
539+ if ((c == -1) && (offset == 0)) {
540+ return null;
541+ }
542+ return String.copyValueOf(buf, 0, offset);
543+ }
544+
545+ /**
546+ * See the general contract of the <code>readUTF</code>
547+ * method of <code>DataInput</code>.
548+ * <p>
549+ * Bytes
550+ * for this operation are read from the contained
551+ * input stream.
552+ *
553+ * @return a Unicode string.
554+ * @exception EOFException if this input stream reaches the end before
555+ * reading all the bytes.
556+ * @exception IOException the stream has been closed and the contained
557+ * input stream does not support reading after close, or
558+ * another I/O error occurs.
559+ * @exception UTFDataFormatException if the bytes do not represent a valid
560+ * modified UTF-8 encoding of a string.
561+ * @see java.io.DataInputStream#readUTF(java.io.DataInput)
562+ */
563+ public final String readUTF() throws IOException {
564+ return readUTF(this);
565+ }
566+
567+ /**
568+ * Reads from the
569+ * stream <code>in</code> a representation
570+ * of a Unicode character string encoded in
571+ * <a href="DataInput.html#modified-utf-8">modified UTF-8</a> format;
572+ * this string of characters is then returned as a <code>String</code>.
573+ * The details of the modified UTF-8 representation
574+ * are exactly the same as for the <code>readUTF</code>
575+ * method of <code>DataInput</code>.
576+ *
577+ * @param in a data input stream.
578+ * @return a Unicode string.
579+ * @exception EOFException if the input stream reaches the end
580+ * before all the bytes.
581+ * @exception IOException the stream has been closed and the contained
582+ * input stream does not support reading after close, or
583+ * another I/O error occurs.
584+ * @exception UTFDataFormatException if the bytes do not represent a
585+ * valid modified UTF-8 encoding of a Unicode string.
586+ * @see java.io.DataInputStream#readUnsignedShort()
587+ */
588+ public final static String readUTF(DataInput in) throws IOException {
589+ int utflen = in.readUnsignedShort();
590+ byte[] bytearr = null;
591+ char[] chararr = null;
592+ if (in instanceof DataInputStream) {
593+ DataInputStream dis = (DataInputStream)in;
594+ if (dis.bytearr.length < utflen){
595+ dis.bytearr = new byte[utflen*2];
596+ dis.chararr = new char[utflen*2];
597+ }
598+ chararr = dis.chararr;
599+ bytearr = dis.bytearr;
600+ } else {
601+ bytearr = new byte[utflen];
602+ chararr = new char[utflen];
603+ }
604+
605+ int c, char2, char3;
606+ int count = 0;
607+ int chararr_count=0;
608+
609+ in.readFully(bytearr, 0, utflen);
610+
611+ while (count < utflen) {
612+ c = (int) bytearr[count] & 0xff;
613+ if (c > 127) break;
614+ count++;
615+ chararr[chararr_count++]=(char)c;
616+ }
617+
618+ while (count < utflen) {
619+ c = (int) bytearr[count] & 0xff;
620+ switch (c >> 4) {
621+ case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
622+ /* 0xxxxxxx*/
623+ count++;
624+ chararr[chararr_count++]=(char)c;
625+ break;
626+ case 12: case 13:
627+ /* 110x xxxx 10xx xxxx*/
628+ count += 2;
629+ if (count > utflen)
630+ throw new UTFDataFormatException(
631+ "malformed input: partial character at end");
632+ char2 = (int) bytearr[count-1];
633+ if ((char2 & 0xC0) != 0x80)
634+ throw new UTFDataFormatException(
635+ "malformed input around byte " + count);
636+ chararr[chararr_count++]=(char)(((c & 0x1F) << 6) |
637+ (char2 & 0x3F));
638+ break;
639+ case 14:
640+ /* 1110 xxxx 10xx xxxx 10xx xxxx */
641+ count += 3;
642+ if (count > utflen)
643+ throw new UTFDataFormatException(
644+ "malformed input: partial character at end");
645+ char2 = (int) bytearr[count-2];
646+ char3 = (int) bytearr[count-1];
647+ if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80))
648+ throw new UTFDataFormatException(
649+ "malformed input around byte " + (count-1));
650+ chararr[chararr_count++]=(char)(((c & 0x0F) << 12) |
651+ ((char2 & 0x3F) << 6) |
652+ ((char3 & 0x3F) << 0));
653+ break;
654+ default:
655+ /* 10xx xxxx, 1111 xxxx */
656+ throw new UTFDataFormatException(
657+ "malformed input around byte " + count);
658+ }
659+ }
660+ // The number of chars produced may be less than utflen
661+ return new String(chararr, 0, chararr_count);
662+ }
663+}