Scala 不可变 TreeSet equals() 方法

在 Scala 不可变TreeSet class中， equals()方法用于检查两个 TreeSet 是否包含完全相同的元素。

Method Definition: def equals(o: Any): Boolean

Return Type: It returns true if both the TreeSets are equal or else returns false.

示例 #1：

// Scala program of equals() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
{ 
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating TreeSets
        val t1 = TreeSet(1, 3, 2, 7, 6, 5) 
          
        val t2 = TreeSet(1, 3, 2, 7, 6, 5) 
          
        // Print the TreeSets
        println("t1: " + t1)
          
        println("t2: " + t2)
          
        // Applying equals() method  
        val result = t1.equals(t2)
          
        // Displays output 
        println("Both the TreeSets are equal: " + result)
          
    } 
} 

输出：

t1: TreeSet(1, 2, 3, 5, 6, 7)
t2: TreeSet(1, 2, 3, 5, 6, 7)
Both the TreeSets are equal: true

示例 #2：

// Scala program of equals() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
{ 
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating TreeSets
        val t1 = TreeSet(1, 3, 2, 7, 6, 5) 
          
        val t2 = TreeSet(3, 2, 7, 6, 5) 
          
        // Print the TreeSets
        println("t1: " + t1)
          
        println("t2: " + t2)
          
        // Applying equals() method  
        val result = t1.equals(t2)
          
        // Displays output 
        println("Both the TreeSets are equal: " + result)
          
    } 
} 

输出：

t1: TreeSet(1, 2, 3, 5, 6, 7)
t2: TreeSet(2, 3, 5, 6, 7)
Both the TreeSets are equal: false