SortedMap hashCode() method in Java with Examples
The hashCode() method of SortedMap interface in Java is used to generate a hashCode for the given map containing key and values.
Syntax:
int hashCode()
Parameters: This method has no argument.
Returns: This method returns the hashCode value for the given map.
Note: The hashCode() method in SortedMap is inherited from the Map interface in Java.
Below programs show the implementation of int hashCode() method.
Program 1:
import java.util.*;
public class GfG {
public static void main(String[] args)
{
SortedMap<Integer, String> map
= new TreeMap<>();
map.put( 1 , "One" );
map.put( 3 , "Three" );
map.put( 5 , "Five" );
map.put( 7 , "Seven" );
map.put( 9 , "Ninde" );
System.out.println(map);
int hash = map.hashCode();
System.out.println(hash);
}
}
|
Output:
{1=One, 3=Three, 5=Five, 7=Seven, 9=Ninde}
238105666
Program 2: Below is the code to show implementation of hashCode().
import java.util.*;
public class GfG {
public static void main(String[] args)
{
SortedMap<String, String> map
= new TreeMap<>();
map.put( "1" , "One" );
map.put( "3" , "Three" );
map.put( "5" , "Five" );
map.put( "7" , "Seven" );
map.put( "9" , "Ninde" );
System.out.println(map);
int hash = map.hashCode();
System.out.println(hash);
}
}
|
Output:
{1=One, 3=Three, 5=Five, 7=Seven, 9=Ninde}
238105618
Reference: Oracle Docs
Last Updated :
30 Sep, 2019
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