replaceFirst()方法與replaceAll相同,但此處僅替換指定子字符串的第一個外觀。
函數定義: String replaceFirst(String regex, String replacement)
返回類型: It returns the stated string after replacing the first appearance of stated regular expression with the string we provide.
範例1:
// Scala program of replaceFirst()
// method
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Applying replaceFirst method
val result = "csoNidhimsoSingh".replaceFirst(".so", "##")
// Displays output
println(result)
}
}
輸出:
##NidhimsoSingh
範例2:
// Scala program of replaceFirst()
// method
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Applying replaceFirst method
val result = "NidhimsoSinghcso".replaceFirst(".so", "*")
// Displays output
println(result)
}
}
輸出:
Nidhi*Singhcso
範例3:
// Scala program of replaceFirst()
// method
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Applying replaceFirst method
val result = "fsoNidhimsoSinghcso".replaceFirst(".so", "*")
// Displays output
println(result)
}
}
輸出:
*NidhimsoSinghcso
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注:本文由純淨天空篩選整理自nidhi1352singh大神的英文原創作品 Scala String replaceFirst() method with example。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。