Program to print Java Set of characters in Scala
Last Updated :
29 Nov, 2019
A java Set of characters can be returned from a Scala program by writing a user defined method of Java in Scala. Here, we don’t even need to import any Scala’s JavaConversions object in order to make this conversions work.
Now, lets see some examples.
Example:1#
object GfG
{
def main(args : Array[String])
{
def res = {
val set = new java.util.HashSet[Char]()
set.add( 'a' )
set.add( 'b' )
set.add( 'c' )
println(set)
}
val set = res
}
}
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Therefore, a set of characters is returned from a Java method. Here, we don’t need to import any object of Scala. In the above program a Java method is written in Scala program. Where, this method adds the character elements to the stated set one after another and then prints the results.
Example:2#
object GfG
{
def main(args : Array[String])
{
def res = {
val set = new java.util.HashSet[Char]()
set.add( 'j' )
set.add( 'l' )
set.add( 'k' )
println(set)
}
val set = res
}
}
|
It is same as above example but here one more element is added in the stated set of characters and as it is a set so, the order of the elements is maintained.
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