diff options
Diffstat (limited to 'libjava/java/lang/StringBuffer.java')
| -rw-r--r-- | libjava/java/lang/StringBuffer.java | 116 |
1 files changed, 59 insertions, 57 deletions
diff --git a/libjava/java/lang/StringBuffer.java b/libjava/java/lang/StringBuffer.java index c3f112967c4..57fd2ca8e81 100644 --- a/libjava/java/lang/StringBuffer.java +++ b/libjava/java/lang/StringBuffer.java @@ -1,5 +1,5 @@ /* StringBuffer.java -- Growable strings - Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -72,8 +72,12 @@ import java.io.Serializable; * @since 1.0 * @status updated to 1.4 */ -public final class StringBuffer implements Serializable, CharSequence +public final class StringBuffer + implements Serializable, CharSequence, Appendable { + // Implementation note: if you change this class, you usually will + // want to change StringBuilder as well. + /** * Compatible with JDK 1.0+. */ @@ -152,17 +156,16 @@ public final class StringBuffer implements Serializable, CharSequence * specified <code>CharSequence</code>. Initial capacity will be the * size of the CharSequence plus 16. * - * @param sequence the <code>String</code> to convert + * @param seq the <code>String</code> to convert * @throws NullPointerException if str is null - * * @since 1.5 */ - public StringBuffer(CharSequence sequence) + public StringBuffer(CharSequence seq) { - count = Math.max(0, sequence.length()); + count = Math.max(0, seq.length()); value = new char[count + DEFAULT_CAPACITY]; for (int i = 0; i < count; ++i) - value[i] = sequence.charAt(i); + value[i] = seq.charAt(i); } /** @@ -391,46 +394,6 @@ public final class StringBuffer implements Serializable, CharSequence } /** - * Append the <code>CharSequence</code> value of the argument to this - * <code>StringBuffer</code>. - * - * @param sequence the <code>CharSequence</code> to append - * @return this <code>StringBuffer</code> - * @see #append(Object) - * @since 1.5 - */ - public synchronized StringBuffer append(CharSequence sequence) - { - if (sequence == null) - sequence = "null"; - return append(sequence, 0, sequence.length()); - } - - /** - * Append the specified subsequence of the <code>CharSequence</code> - * argument to this <code>StringBuffer</code>. - * - * @param sequence the <code>CharSequence</code> to append - * @param start the starting index - * @param end one past the ending index - * @return this <code>StringBuffer</code> - * @see #append(Object) - * @since 1.5 - */ - public synchronized StringBuffer append(CharSequence sequence, - int start, int end) - { - if (sequence == null) - sequence = "null"; - if (start < 0 || end < 0 || start > end || end > sequence.length()) - throw new IndexOutOfBoundsException(); - ensureCapacity_unsynchronized(this.count + end - start); - for (int i = start; i < end; ++i) - value[count++] = sequence.charAt(i); - return this; - } - - /** * Append the <code>char</code> array to this <code>StringBuffer</code>. * This is similar (but more efficient) than * <code>append(new String(data))</code>, except in the case of null. @@ -470,6 +433,25 @@ public final class StringBuffer implements Serializable, CharSequence } /** + * Append the code point to this <code>StringBuffer</code>. + * This is like #append(char), but will append two characters + * if a supplementary code point is given. + * + * @param code the code point to append + * @return this <code>StringBuffer</code> + * @see Character#toChars(int, char[], int) + * @since 1.5 + */ + public synchronized StringBuffer appendCodePoint(int code) + { + int len = Character.charCount(code); + ensureCapacity_unsynchronized(count + len); + Character.toChars(code, value, count); + count += len; + return this; + } + + /** * Append the <code>String</code> value of the argument to this * <code>StringBuffer</code>. Uses <code>String.valueOf()</code> to convert * to <code>String</code>. @@ -497,21 +479,41 @@ public final class StringBuffer implements Serializable, CharSequence } /** - * Append the code point to this <code>StringBuffer</code>. - * This is like #append(char), but will append two characters - * if a supplementary code point is given. + * Append the <code>CharSequence</code> value of the argument to this + * <code>StringBuffer</code>. * - * @param code the code point to append + * @param seq the <code>CharSequence</code> to append * @return this <code>StringBuffer</code> - * @see Character#toChars(int, char[], int) + * @see #append(Object) * @since 1.5 */ - public synchronized StringBuffer appendCodePoint(int code) + public synchronized StringBuffer append(CharSequence seq) { - int len = Character.charCount(code); - ensureCapacity_unsynchronized(count + len); - Character.toChars(code, value, count); - count += len; + if (seq == null) + seq = "null"; + return append(seq, 0, seq.length()); + } + + /** + * Append the specified subsequence of the <code>CharSequence</code> + * argument to this <code>StringBuffer</code>. + * + * @param seq the <code>CharSequence</code> to append + * @param start the starting index + * @param end one past the ending index + * @return this <code>StringBuffer</code> + * @see #append(Object) + * @since 1.5 + */ + public synchronized StringBuffer append(CharSequence seq, int start, int end) + { + if (seq == null) + seq = "null"; + if (start < 0 || end < 0 || start > end || end > seq.length()) + throw new IndexOutOfBoundsException(); + ensureCapacity_unsynchronized(this.count + end - start); + for (int i = start; i < end; ++i) + value[count++] = seq.charAt(i); return this; } |