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translation: Add Python and Java code for EN version (#1345)

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* Add the intial translation of code of all the languages

* test

* revert

* Remove

* Add Python and Java code for EN version
This commit is contained in:
Yudong Jin
2024-05-06 05:21:51 +08:00
committed by GitHub
parent b5e198db7d
commit 1c0f350ad6
174 changed files with 12349 additions and 0 deletions
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65
en/codes/java/chapter_hashing/simple_hash.java Normal file
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/**
* File: simple_hash.java
* Created Time: 2023-06-21
* Author: krahets (krahets@163.com)
*/
package chapter_hashing;
public class simple_hash {
/* Additive hash */
static int addHash(String key) {
long hash = 0;
final int MODULUS = 1000000007;
for (char c : key.toCharArray()) {
hash = (hash + (int) c) % MODULUS;
}
return (int) hash;
}
/* Multiplicative hash */
static int mulHash(String key) {
long hash = 0;
final int MODULUS = 1000000007;
for (char c : key.toCharArray()) {
hash = (31 * hash + (int) c) % MODULUS;
}
return (int) hash;
}
/* XOR hash */
static int xorHash(String key) {
int hash = 0;
final int MODULUS = 1000000007;
for (char c : key.toCharArray()) {
hash ^= (int) c;
}
return hash & MODULUS;
}
/* Rotational hash */
static int rotHash(String key) {
long hash = 0;
final int MODULUS = 1000000007;
for (char c : key.toCharArray()) {
hash = ((hash << 4) ^ (hash >> 28) ^ (int) c) % MODULUS;
}
return (int) hash;
}
public static void main(String[] args) {
String key = "Hello algorithm";
int hash = addHash(key);
System.out.println("Additive hash value is " + hash);
hash = mulHash(key);
System.out.println("Multiplicative hash value is " + hash);
hash = xorHash(key);
System.out.println("XOR hash value is " + hash);
hash = rotHash(key);
System.out.println("Rotational hash value is " + hash);
}
}