StringBuffer工具类收拾(一)

 1 package com.gzcivil.utils; 2  3 /** 4  * 同StringBuffer 5  *  6  * @author Dragon 7  * @time 2013-3-1 8  */ 9 public class StrBuffer {10     private StringBuffer sb = null;11 12     public StrBuffer() {13         sb = new StringBuffer();14     }15 16     public StrBuffer(Object... objects) {17         sb = new StringBuffer();18         append(objects);19     }20 21     public StringBuffer append(Object... objects) {22         if (objects != null) {23             for (Object o : objects) {24                 sb.append(o);25             }26         }27         return sb;28     }29 30     public int length() {31         return sb.length();32     }33 34     public int indexOf(String string) {35         // TODO Auto-generated method stub36         return sb.indexOf(string);37     }38 39     public int lastIndexOf(String string) {40         return sb.lastIndexOf(string);41     }42 43     public int indexOf(String subString, int start) {44         // TODO Auto-generated method stub45         return sb.indexOf(subString, start);46     }47 48     public String substring(int start, int end) {49         // TODO Auto-generated method stub50         return sb.substring(start, end);51     }52 53     public String toString() {54         return sb.toString();55     }56 57     public char charAt(int index) {58         return sb.charAt(index);59     }60 61     public boolean equals(Object obj) {62         if (this == obj)63             return true;64 65         if (obj != null && obj.getClass() == this.getClass()) {66             StrBuffer sb = (StrBuffer) obj;67             int len = length();68             if (len != sb.length())69                 return false;70             int index = 0;71             while (index != len) {72                 if (charAt(index) != sb.charAt(index))73                     return false;74                 else75                     index++;76             }77             return true;78         }79         return false;80     }81 }