安卓中一个字符串str1是否包含在另一个str2中，判断一个字符串是否为电话号码格式

public bool isMatch(String str1, String str2)
{
/* ��k�@ */
String strPattern = "(?i)"+str1;
Pattern p = Pattern.compile(str2);
Matcher m = p.matcher(small);

return m.find();
}

public static boolean isTWCellPhone(String strUnknow)
{
/*
* (0935)456-789, 0935-456-789, 1234567890, (0935)-456-789//号码的格式
* */
String strPattern = "^\\(?(\\d{4})\\)?[-]?(\\d{3})[-]?(\\d{3})$";
Pattern p = Pattern.compile(strPattern);
Matcher m = p.matcher(strUnknow);
return m.matches();
}

public static boolean isUSCellPhone(String strUnknow)//判断是否为美国电话号码
{
/*
* (123)456-7890, 123-456-7890, 1234567890, (123)-456-7890
* */
String strPattern = "^\\(?(\\d{3})\\)?[-]?(\\d{3})[-]?(\\d{4})$";
Pattern p = Pattern.compile(strPattern);
Matcher m = p.matcher(strUnknow);
return m.matches();
}