Scala Stack dropRight()用法及代碼示例

在 Scala Stack class，則使用dropRight()方法刪除堆棧的最後n個元素。

函數定義: def dropRight(n: Int): Stack[A]

返回類型: It returns a new stack that consists of all the elements except the last ‘n’ elements.

範例1：

// Scala program of dropRight()  
// method  
  
// Import Stack  
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating stack   
        val s1 = Stack(6, 2, 3, 4, 5)   
            
        // Print the stack  
        println(s1)   
          
        // Applying dropRight method   
        val result = s1.dropRight(2)  
            
        // Displays output   
        print("Stack after dropRight(2) method: " + result) 
    }  
}

輸出：

Stack(6, 2, 3, 4, 5)
Stack after dropRight(2) method: Stack(6, 2, 3)

範例2：

// Scala program of dropRight()  
// method  
  
// Import Stack  
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating stack   
        val s1 = Stack(6, 2, 3, 4, 5)   
            
        // Print the stack  
        println(s1)   
          
        // Applying dropRight method   
        val result = s1.dropRight(3)  
            
        // Displays output   
        print("Stack after dropRight(3) method: " + result) 
    }  
}

輸出：

Stack(6, 2, 3, 4, 5)
Stack after dropRight(3) method: Stack(6, 2)

相關用法

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