带有分隔符的 Scala Map addString() 方法和示例

此方法与addString()方法相同，但此处还包括一个分隔符。

Method Definition: def addString(b: StringBuilder, sep: String): StringBuilder

Where, sep is the separator stated.

Return Type: It returns the elements of the map in the String Builder and a separator is also added between the elements of the map.

示例 #1：

// Scala program of addString()
// method with a separator
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map("geeks" -> 5, "for" -> 3, "cs" -> 2)
          
        // Applying addString method
        // and a separator
        val result = m1.addString(new StringBuilder(), "_") 
          
        // Displays output
        println(result)
      
    }
}

输出：

geeks -> 5_for -> 3_cs -> 2

示例 #2：

// Scala program of addString()
// method with a separator
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map("geeks" -> 5, "for" -> 3, "geeks" -> 2)
          
        // Applying addString method
        // and a separator
        val result = m1.addString(new StringBuilder(), "_") 
          
        // Displays output
        println(result)
          
    }
}

输出：

geeks -> 2_for -> 3

因此，这里删除了相同的键。