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Scala Stack reverse() method with example

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

Scala Stack reverse() method with example

nidhi1352singh

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Article Tags :

Scala
Scala
Scala-Method
Scala-Strings

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