StringUtils.isNotBlank() VS StringUtils.isNotEmpty() in Java
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("java") = true
StringUtils.isNotBlank("java ") = true
Parameters:
str - the String to check
Returns:true if the String is not empty and not null and not whitespace
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("java") = true
StringUtils.isNotEmpty("java ") = true
Parameters:
str - the String to check, may be null
Returns:
true if the String is not empty and not null
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("java") = true
StringUtils.isNotBlank("java ") = true
Parameters:
str - the String to check
Returns:true if the String is not empty and not null and not whitespace
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("java") = true
StringUtils.isNotEmpty("java ") = true
Parameters:
str - the String to check, may be null
Returns:
true if the String is not empty and not null
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