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StringUtils | Java | 株式会社CONFRAGE
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初版2011/12/31：最終更新日2011/12/31
StringUtils
StringUtilsクラスは、Stringクラスのメソッドを拡張したユーティリティクラスです。
NullPointerExceptionが発生しないようにnull判定がされているので非常に便利です。

良く使用するメソッドはisEmptyです。
staticメソッドのため記述方法は以下のような感じです。

import org.apache.commons.lang.StringUtils;

・
・
if(StringUtils.isEmpty(str)){

}
isEmptyメソッドはnullチェックと空チェックを行います。真の場合trueを返します。

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