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hello-algo/en/codes/java/chapter_hashing/built_in_hash.java

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/**
* File: built_in_hash.java
* Created Time: 2023-06-21
* Author: krahets (krahets@163.com)
*/
package chapter_hashing;
import utils.*;
import java.util.*;
public class built_in_hash {
public static void main(String[] args) {
int num = 3;
int hashNum = Integer.hashCode(num);
System.out.println("The hash value of integer " + num + " is " + hashNum);
boolean bol = true;
int hashBol = Boolean.hashCode(bol);
System.out.println("The hash value of boolean " + bol + " is " + hashBol);
double dec = 3.14159;
int hashDec = Double.hashCode(dec);
System.out.println("The hash value of decimal " + dec + " is " + hashDec);
String str = "Hello algorithm";
int hashStr = str.hashCode();
System.out.println("The hash value of string " + str + " is " + hashStr);
Object[] arr = { 12836, "Ha" };
int hashTup = Arrays.hashCode(arr);
System.out.println("The hash value of array " + Arrays.toString(arr) + " is " + hashTup);
ListNode obj = new ListNode(0);
int hashObj = obj.hashCode();
System.out.println("The hash value of node object " + obj + " is " + hashObj);
}
}