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What does the method hashCode(int[] a) do in java?
The hashCode(int[]) method of the java.util.Arrays class returns a hash code based on the contents of the specified array. For any two non-null int arrays a and b such that Arrays.equals(a, b), it is also the case that Arrays.hashCode(a) == Arrays.hashCode(b).
Example
import java.util.Arrays;
public class ArrayDemo {
public static void main(String[] args) {
int[] ival = new int[] { 3, 5 };
int retval = ival.hashCode();
System.out.println("The hash code of value1 is: " + retval);
ival = new int[] { 19, 75 };
retval = ival.hashCode();
System.out.println("The hash code of value2 is: " + retval);
}
}Output
The hash code of value1 is: 4072869 The hash code of value2 is: 1671711
Updated on 20-Feb-2020 12:31:32
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