Module com.flexganttfx.core
Package com.flexganttfx.core

Class StringUtils

  • public class StringUtils
extends Object
    A couple of utility methods for working with strings.
    Since:
    1.0

    • Constructor Detail

      • StringUtils

        public StringUtils()

    • Method Detail

      • isEmpty

        public static boolean isEmpty​(String str)

        Checks if a String is empty ("") or null. 

         StringUtils.isEmpty(null)      = true
 StringUtils.isEmpty("")        = true
 StringUtils.isEmpty(" ")       = false
 StringUtils.isEmpty("bob")     = false
 StringUtils.isEmpty("  bob  ") = false
        Parameters:
        str - the String to check, may be null
        Returns:
        true if the String is empty or null
        Since:
        1.0

      • isNotEmpty

        public static boolean isNotEmpty​(String str)

        Checks if a String is not empty ("") and not null. 

         StringUtils.isNotEmpty(null)      = false
 StringUtils.isNotEmpty("")        = false
 StringUtils.isNotEmpty(" ")       = true
 StringUtils.isNotEmpty("bob")     = true
 StringUtils.isNotEmpty("  bob  ") = true
        Parameters:
        str - the String to check, may be null
        Returns:
        true if the String is not empty and not null
        Since:
        1.0

      • isBlank

        public static boolean isBlank​(String str)

        Checks if a String is whitespace, empty ("") or null. 

         StringUtils.isBlank(null)      = true
 StringUtils.isBlank("")        = true
 StringUtils.isBlank(" ")       = true
 StringUtils.isBlank("bob")     = false
 StringUtils.isBlank("  bob  ") = false
        Parameters:
        str - the String to check, may be null
        Returns:
        true if the String is null, empty or whitespace
        Since:
        1.0

      • isNotBlank

        public static boolean isNotBlank​(String str)

        Checks if a String is not empty (""), not null and not whitespace only. 

         StringUtils.isNotBlank(null)      = false
 StringUtils.isNotBlank("")        = false
 StringUtils.isNotBlank(" ")       = false
 StringUtils.isNotBlank("bob")     = true
 StringUtils.isNotBlank("  bob  ") = true
        Parameters:
        str - the String to check, may be null
        Returns:
        true if the String is not empty and not null and not whitespace
        Since:
        1.0