NSString+NSStringForJava.m

    //  

    //  NSString+NSStringForJava.m  

    //  NSStringCategory  

    //  

    //  Created by Ryan Tang on 12-10-17.  

    //  Copyright (c) 2012年 Ericsson Labs. All rights reserved.  

    //  

      

    #import "NSString+NSStringForJava.h"  

      

    @implementation NSString (NSStringForJava)  

      

    //对比两个字符串内容是否一致  

    - (BOOL) equals:(NSString*) string  

    {  

        return [self isEqualToString:string];  

    }  

      

    //判断字符串是否以指定的前缀开头  

    - (BOOL) startsWith:(NSString*)prefix  

    {  

        return [self hasPrefix:prefix];  

    }  

      

    //判断字符串是否以指定的后缀结束  

    - (BOOL) endsWith:(NSString*)suffix  

    {  

        return [self hasSuffix:suffix];  

    }  

      

    //转换成小写  

    - (NSString *) toLowerCase  

    {  

        return [self lowercaseString];  

    }  

      

    //转换成大写  

    - (NSString *) toUpperCase  

    {  

        return [self uppercaseString];  

    }  

      

    //截取字符串前后空格  

    - (NSString *) trim  

    {  

        return [self stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];  

    }  

      

    //用指定分隔符将字符串分割成数组  

    - (NSArray *) split:(NSString*) separator  

    {  

        return [self componentsSeparatedByString:separator];  

    }  

      

    //用指定字符串替换原字符串  

    - (NSString *) replaceAll:(NSString*)oldStr with:(NSString*)newStr  

    {  

        return [self stringByReplacingOccurrencesOfString:oldStr withString:newStr];  

    }  

      

    //从指定的开始位置和结束位置开始截取字符串  

    - (NSString *) substringFromIndex:(int)begin toIndex:(int)end  

    {  

        if (end <= begin) {  

            return @"";  

        }  

        NSRange range = NSMakeRange(begin, end - begin);  

        return [self substringWithRange:range];  

    }  

      

    @end