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@yuta317(kiku may)in株式会社Infreed

Kotlin 頭をゼロ埋めにする

Posted at

頭をゼロ埋めにする方法です。
padStartというものがあります。

.kt
val padWithZero = "125".padStart(5, '0')
println("'$padWithZero'") // '00125'

padStartの引数

  • length
    希望する文字列の長さ
  • padChar文字列の長さが指定された長さより短い場合に、文字列を埋め込む文字。デフォルトで はスペースが使用されます

こちらで頭をゼロ埋めにすることができます。この方法を使えば０以外も頭埋めすることが可能です。

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