TreeSet hashCode() method in Java with Example
The hashCode() method of TreeSet in Java is used to get the hashCode value for this instance of the TreeSet. It returns an integer value which is the hashCode value for this instance of the TreeSet.
Syntax:
public int hashCode()
Parameters: This function has no parameters.
Returns: The method returns an integer value which is the hashCode value for this instance of the TreeSet.
Below examples illustrates the TreeSet.hashCode() method:
Example 1:
import java.util.*;
public class GFG {
public static void main(String[] args)
{
TreeSet<Integer> LHS
= new TreeSet<Integer>();
LHS.add( 1 );
LHS.add( 2 );
LHS.add( 3 );
LHS.add( 4 );
System.out.println( "TreeSet: "
+ LHS);
System.out.println( "HashCode value: "
+ LHS.hashCode());
}
}
|
Output:
TreeSet: [1, 2, 3, 4]
HashCode value: 10
Example 2:
import java.util.*;
public class GFG {
public static void main(String[] args)
{
TreeSet<String> LHS
= new TreeSet<String>();
LHS.add( "Geeks" );
LHS.add( "For" );
LHS.add( "ForGeeks" );
LHS.add( "GeeksForGeeks" );
System.out.println( "TreeSet: "
+ LHS);
System.out.println( "HashCode value: "
+ LHS.hashCode());
}
}
|
Output:
TreeSet: [For, ForGeeks, Geeks, GeeksForGeeks]
HashCode value: -482506029
Last Updated :
27 Dec, 2018
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