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Scala Stack dropRight()用法及代码示例


在 Scala Stack class,则使用dropRight()方法删除堆栈的最后n个元素。

函数定义: def dropRight(n: Int): Stack[A]

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



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

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


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注:本文由纯净天空筛选整理自rupesh_rao大神的英文原创作品 Scala Stack dropRight() method with example。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。