March 03, 2014

StringUtils.isNotEmpty() VS StringUtils.isNotBlank()


StringUtils.isNotEmpty() is used to find if the String is not empty and not null

StringUtils.isNotBlank() takes it a step forward. It not only checks if the String is not empty and not null, but also checks if it is not only a whitespace string.

1) isNotEmpty

StringUtils.isNotEmpty(null)      = false
StringUtils.isNotEmpty("")        = false
StringUtils.isNotEmpty(" ")       = true
StringUtils.isNotEmpty("  lol  ") = true
StringUtils.isNotEmpty("lol")     = true

2) isNotBlank

StringUtils.isNotBlank(null)      = false
StringUtils.isNotBlank("")        = false
StringUtils.isNotBlank(" ")       = false
StringUtils.isNotBlank("lol")     = true
StringUtils.isNotBlank("  lol  ") = true


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