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:

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// 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);
        }
    }
}

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Output:


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





Example 2:











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// 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); 


        } 


    } 


} 



















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Output:


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






          
          
          
          

            

    

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