/* * Copyright 2008 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package java.lang; import static javaemul.internal.InternalPreconditions.checkNotNull; /** * A fast way to create strings using multiple appends. * * This class is an exact clone of {@link StringBuffer} except for the name. * Any change made to one should be mirrored in the other. */ public final class StringBuilder extends AbstractStringBuilder { public StringBuilder() { super(""); } public StringBuilder(CharSequence s) { super(s.toString()); } /** * This implementation does not track capacity; using this constructor is * functionally equivalent to using the zero-argument constructor. */ @SuppressWarnings("unused") public StringBuilder(int ignoredCapacity) { super(""); } public StringBuilder(String s) { super(checkNotNull(s)); } public StringBuilder append(boolean x) { string += x; return this; } @Override public StringBuilder append(char x) { string += x; return this; } public StringBuilder append(char[] x) { string += String.valueOf(x); return this; } public StringBuilder append(char[] x, int start, int len) { string += String.valueOf(x, start, len); return this; } @Override public StringBuilder append(CharSequence x) { string += x; return this; } @Override public StringBuilder append(CharSequence x, int start, int end) { string += String.valueOf(x).substring(start, end); return this; } public StringBuilder append(double x) { string += x; return this; } public StringBuilder append(float x) { string += x; return this; } public StringBuilder append(int x) { string += x; return this; } public StringBuilder append(long x) { string += x; return this; } public StringBuilder append(Object x) { string += x; return this; } public StringBuilder append(String x) { string += x; return this; } public StringBuilder append(StringBuffer x) { string += x; return this; } public StringBuilder appendCodePoint(int x) { appendCodePoint0(x); return this; } public StringBuilder delete(int start, int end) { replace0(start, end, ""); return this; } public StringBuilder deleteCharAt(int start) { replace0(start, start + 1, ""); return this; } public StringBuilder insert(int index, boolean x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, char x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, char[] x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, char[] x, int offset, int len) { return insert(index, String.valueOf(x, offset, len)); } public StringBuilder insert(int index, CharSequence chars) { return insert(index, String.valueOf(chars)); } public StringBuilder insert(int index, CharSequence chars, int start, int end) { return insert(index, String.valueOf(chars).substring(start, end)); } public StringBuilder insert(int index, double x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, float x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, int x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, long x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, Object x) { return insert(index, String.valueOf(x)); } public StringBuilder insert(int index, String x) { replace0(index, index, x); return this; } public StringBuilder replace(int start, int end, String toInsert) { replace0(start, end, toInsert); return this; } public StringBuilder reverse() { reverse0(); return this; } }