how to remove duplicate elements in String in scala

If we try to covert String to Array then remove duplicate value using Distinct method .

Finally we print contents of an Array in scala we’ll have a surprise output :

var ls= "shubham"
var array= ls.toCharArray
array.distinct.foreach(print)

Conclusion

While List, Set, and Map are actual Scala collections,

the Array type is just the Scala equivalent of Java native arrays (e.g., String[] to represent a native array of Strings).

So when we try to use method distinct in scala and print content of array ,

we used foreach loop to print element because toString method give only whatever is defined in the Array.toString method (usually is the object hashcode, but it depends on the platform).