Apache commons--stringutils

StringUtils is a string tool class, the Main method is as follows:

1, public static Boolean IsEmpty (Charsequence CS): Determine whether the string is "" or null,

Stringutils.isempty (NULL) = True
Stringutils.isempty ("") = True
Stringutils.isempty ("") = False
Stringutils.isempty ("Bob") = False
Stringutils.isempty ("Bob") = False

2. public static Boolean Isnotempty (Charsequence CS): Determines whether the string is not "" or is not NULL

Stringutils.isnotempty (NULL) = False
Stringutils.isnotempty ("") = False
Stringutils.isnotempty ("") = True
Stringutils.isnotempty ("Bob") = True
Stringutils.isnotempty ("Bob") = True

3, public static Boolean Isanyempty (Charsequence ... css): any one parameter is empty, return true, if these parameters are not empty then return false

Stringutils.isanyempty (NULL) = True
Stringutils.isanyempty (null, "foo") = True
Stringutils.isanyempty ("", "bar") = True
Stringutils.isanyempty ("Bob", "") = True
Stringutils.isanyempty ("Bob", NULL) = True
Stringutils.isanyempty ("", "bar") = False
Stringutils.isanyempty ("foo", "bar") = False

4, public static Boolean Isnoneempty (Charsequence ... css): Any parameter is empty, return false, all parameters are not empty, return true

Stringutils.isnoneempty (NULL) = False
Stringutils.isnoneempty (null, "foo") = False
Stringutils.isnoneempty ("", "bar") = False
Stringutils.isnoneempty ("Bob", "") = False
Stringutils.isnoneempty ("Bob", NULL) = False
Stringutils.isnoneempty ("", "bar") = True
Stringutils.isnoneempty ("foo", "bar") = True

5, public static Boolean IsBlank (Charsequence CS): Determine whether the character object is not an empty string

Stringutils.isblank (NULL) = True
Stringutils.isblank ("") = True
Stringutils.isblank ("") = True
Stringutils.isblank ("Bob") = False
Stringutils.isblank ("Bob") = False

6. public static Boolean Isnotblank (Charsequence CS): Determines whether the character object is not an empty string

7, public static Boolean Isanyblank (Charsequence ... css): Determine whether the string is an empty string, all empty strings will return true, otherwise return false

8, public static Boolean Isnoneblank (Charsequence ... css): Determine whether the string is not an empty string, all is not an empty string to return True, otherwise return false

9. public static string trim (String str): Removes whitespace from the end of the string

10. public static Boolean equals (Charsequence cs1, charsequence CS2): Determines whether strings are equal

11. public static Boolean equalsignorecase (Charsequence str1, Charsequence str2): string comparison, ignoring case

12. public static int indexOf (charsequence seq, int SearchChar): Returns the position index of the first occurrence of the string

13. public static int Ordinalindexof (Charsequence str, charsequence searchstr, int ordinal): Determines the index of the position where the string appears in the other string

14. public static int lastIndexOf (Charsequence seq,int SearchChar): The position index of the last occurrence of the character in the string

15, public static int lastordinalindexof (charsequence str,charsequence searchstr, int ordinal): Determines the index of the position where the character appears in the countdown to the string

16. public static Boolean contains (charsequence seq, int SearchChar): Determines if the character is in another string

17. public static string substring (String str,int start): String intercept

18. public static string left (String Str,int len): The number of characters to the ieft of a string

public static string right (string str, int len): How many characters to the left of a string

　　　　

　　

Apache commons--stringutils