Scala String replaceFirst() method with example
Last Updated :
03 Oct, 2019
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The replaceFirst() method is same as replaceAll but here only the first appearance of the stated sub-string will be replaced.
Method Definition: String replaceFirst(String regex, String replacement)
Return Type: It returns the stated string after replacing the first appearance of stated regular expression with the string we provide.
Example #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) } } |
Output:
##NidhimsoSingh
Example #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) } } |
Output:
Nidhi*Singhcso
Example #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) } } |
Output:
*NidhimsoSinghcso
