Scala Iterator addString()用法及代码示例

addString方法用于将Scala迭代器的元素附加到String Builder。此方法与addString()方法相同，但这里也包含开始，分隔符和结束。

函数定义： def addString(b:mutable.StringBuilder, start:String, sep:String, end:String):mutable.StringBuilder

Where, sep is the separator stated.

返回类型： It returns the elements of the Iterator in the String Builder and a start, a separator and an end is also included here.

范例1：

// Scala program of addString() method 
// with a start, a separator and an 
// end 
  
// Creating object 
object GfG 
{  
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating a Iterator 
        val m1 = Iterator(1, 3, 4, 8) 
          
        // Applying addString method  
        val result = m1.addString(new StringBuilder(), "=>", "|", ".") 
          
        // Displays output 
        println(result) 
    } 
}

输出：

=>1|3|4|8.

范例2：

// Scala program of addString() method 
// with a start, a separator and an 
// end 
  
// Creating object 
object GfG 
{  
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating a Iterator 
        val m1 = Iterator(1, 3, 3, 8) 
          
        // Applying addString method  
        val result = m1.addString(new StringBuilder(), "=>", "|", ".") 
          
        // Displays output 
        println(result) 
    } 
}

输出：

=>1|3|3|8.

因此，此处相同的元素不会像在Map中一样被删除。

相关用法

注：本文由纯净天空筛选整理自nidhi1352singh大神的英文原创作品 Scala Iterator addString() method with a start, a separator and an end 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。