带有示例的 Scala 迭代器 addString() 方法

addString()方法属于AbstractIterator类的具体值成员。它在类IterableOnceOps中定义。它用于将 Scala 迭代器的元素附加到字符串生成器。

Method Definition : def addString(b: StringBuilder): StringBuilder

Return Type : It returns the String Builder to which the elements were appended.

示例 #1：

// Scala program of addString()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating an Iterator 
        val iter = Iterator(7, 6, 8, 1)
          
        // Applying addString method 
        val result = iter.addString(new StringBuilder())
          
        // Displays output
        println(result)
      
    }
}

输出：

7681

示例 #2：

// Scala program of addString()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating an Iterator 
        val iter = Iterator(7.7, 6.1, 8.6, 1.1)
          
        // Applying addString method 
        val result = iter.addString(new StringBuilder())
          
        // Displays output
        println(result)
          
    }
}

输出：

7.76.18.61.1