java正则表达式

String regEx="0(1)(2)";        
        String str="0123456789012345678901234567890123456789";		
		Pattern p = Pattern.compile(regEx);
		Matcher matcher = p.matcher(str);
		while(matcher.find()){
			System.out.print(matcher.group(0)+"=");
			System.out.print(matcher.group(2)+"<=>");
		}