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

* Add the intial translation of code of all the languages

* test

* revert

* Remove

* Add Python and Java code for EN version

en/codes/java/chapter_hashing/hash_map.java

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+/**
+ * File: hash_map.java
+ * Created Time: 2022-12-04
+ * Author: krahets (krahets@163.com)
+ */
+
+package chapter_hashing;
+
+import java.util.*;
+import utils.*;
+
+public class hash_map {
+    public static void main(String[] args) {
+        /* Initialize hash table */
+        Map<Integer, String> map = new HashMap<>();
+
+        /* Add operation */
+        // Add key-value pair (key, value) to the hash table
+        map.put(12836, "Ha");
+        map.put(15937, "Luo");
+        map.put(16750, "Suan");
+        map.put(13276, "Fa");
+        map.put(10583, "Ya");
+        System.out.println("\nAfter adding, the hash table is\nKey -> Value");
+        PrintUtil.printHashMap(map);
+
+        /* Query operation */
+        // Enter key to the hash table, get value
+        String name = map.get(15937);
+        System.out.println("\nEnter student ID 15937, found name " + name);
+
+        /* Remove operation */
+        // Remove key-value pair (key, value) from the hash table
+        map.remove(10583);
+        System.out.println("\nAfter removing 10583, the hash table is\nKey -> Value");
+        PrintUtil.printHashMap(map);
+
+        /* Traverse hash table */
+        System.out.println("\nTraverse key-value pairs Key->Value");
+        for (Map.Entry<Integer, String> kv : map.entrySet()) {
+            System.out.println(kv.getKey() + " -> " + kv.getValue());
+        }
+        System.out.println("\nIndividually traverse keys Key");
+        for (int key : map.keySet()) {
+            System.out.println(key);
+        }
+        System.out.println("\nIndividually traverse values Value");
+        for (String val : map.values()) {
+            System.out.println(val);
+        }
+    }
+}