AbstractList hashCode() method in Java with Examples

The hashCode() method of java.util.AbstractList class is used to return the hash code value for this list.

Syntax:

public int hashCode()

Returns Value: This method returns the hash code value for this list.

Below are the examples to illustrate the hashCode() method.

Example 1:

// Java program to demonstrate 
// hashCode() method 
// for Integer value 
  
import java.util.*; 
  
public class GFG1 { 
    public static void main(String[] argv) 
        throws Exception 
    { 
  
        try { 
  
            // Creating object of AbstractList<Integer> 
            AbstractList<Integer> 
                arrlist1 = new ArrayList<Integer>(); 
  
            // Populating arrlist1 
            arrlist1.add(10); 
            arrlist1.add(20); 
            arrlist1.add(30); 
            arrlist1.add(40); 
            arrlist1.add(50); 
  
            // print arrlist1 
            System.out.println("ArrayListlist : " + arrlist1); 
  
            // getting the value at the index 3 
            // using get() method 
            int code = arrlist1.hashCode(); 
  
            // print the value 
            System.out.println("HashCode : " + code); 
        } 
  
        catch (IndexOutOfBoundsException e) { 
            System.out.println("Exception thrown : " + e); 
        } 
    } 
} 

Output:

ArrayListlist : [10, 20, 30, 40, 50]
HashCode : 38490301

Example 2:

// Java program to demonstrate 
// hashCode() method 
// for String value 
  
import java.util.*; 
  
public class GFG1 { 
    public static void main(String[] argv) 
        throws Exception 
    { 
  
        try { 
  
            // Creating object of AbstractList<String> 
            AbstractList<String> 
                arrlist1 = new ArrayList<String>(); 
  
            // Populating arrlist1 
            arrlist1.add("A"); 
            arrlist1.add("B"); 
            arrlist1.add("C"); 
            arrlist1.add("D"); 
            arrlist1.add("E"); 
  
            // print arrlist1 
            System.out.println("ArrayListlist : "
                               + arrlist1); 
  
            // getting the value at the index 3 
            // using get() method 
            int code = arrlist1.hashCode(); 
  
            // print the value 
            System.out.println("HashCode : " + code); 
        } 
  
        catch (IndexOutOfBoundsException e) { 
            System.out.println("Exception thrown : " + e); 
        } 
    } 
} 

Output:

ArrayListlist : [A, B, C, D, E]
HashCode : 90690786

My Personal Notes

Recommended Posts: