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public class HashMapTest {
 
	public static void main(String[] args) {
 
		// a simple hashMap declaration with default size and load factor
		HashMap<String, Integer> hashMap = new HashMap<String, Integer>();
		// hashMap with multiple values with default size and load factor
        HashMap<String, ArrayList<String>> multiMap = new HashMap<String, ArrayList<String>>();
 
        // Put elements to the hashMap
        hashMap.put("USA", new Integer(1));
        hashMap.put("UK", new Integer(2));
        hashMap.put("China",new Integer(3));
 
        // take a value of a specific key
        System.out.println("Simple HashMap: Key 'UK' has value = " + hashMap.get("UK"));
 
        // see if a specific value or key is into the hashMap
        System.out.println("Simple HashMap containes value '1' - " + hashMap.containsValue(1));
        System.out.println("Simple HashMap containes key 'Greece' - " 
                           + hashMap.containsKey("Greece"));
 
        // create an arrayList to store values
        ArrayList<String> listOne = new ArrayList<String>();
        listOne.add("Blue");
        listOne.add("Black");
        listOne.add("Brown");
 
        // create list two and store values
        ArrayList<String> listTwo = new ArrayList<String>();
        listTwo.add("Pink");
        listTwo.add("Purple");
 
        // put values into map
        multiMap.put("B color", listOne);
        multiMap.put("P color", listTwo);
 
        // Get a set of the entries
        Set<Entry<String, ArrayList<String>>> setMap = multiMap.entrySet();
        // Get an iterator
        Iterator<Entry<String,  ArrayList<String>>> iteratorMap = setMap.iterator();
 
        System.out.println("\nHashMap with Multiple Values");
        // display all the elements
        while(iteratorMap.hasNext()) {
        	Map.Entry<String, ArrayList<String>> entry = 
        			(Map.Entry<String, ArrayList<String>>) iteratorMap.next();
            String key = entry.getKey();
            List<String> values = entry.getValue();
            System.out.println("Key = '" + key + "' has values: " + values);
        }
 
	}
 
}

Main.java:1: error: class HashMapTest is public, should be declared in a file named HashMapTest.java
public class HashMapTest {
       ^
Main.java:6: error: cannot find symbol
		HashMap<String, Integer> hashMap = new HashMap<String, Integer>();
		^
  symbol:   class HashMap
  location: class HashMapTest
Main.java:6: error: cannot find symbol
		HashMap<String, Integer> hashMap = new HashMap<String, Integer>();
		                                       ^
  symbol:   class HashMap
  location: class HashMapTest
Main.java:8: error: cannot find symbol
        HashMap<String, ArrayList<String>> multiMap = new HashMap<String, ArrayList<String>>();
        ^
  symbol:   class HashMap
  location: class HashMapTest
Main.java:8: error: cannot find symbol
        HashMap<String, ArrayList<String>> multiMap = new HashMap<String, ArrayList<String>>();
                        ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:8: error: cannot find symbol
        HashMap<String, ArrayList<String>> multiMap = new HashMap<String, ArrayList<String>>();
                                                          ^
  symbol:   class HashMap
  location: class HashMapTest
Main.java:8: error: cannot find symbol
        HashMap<String, ArrayList<String>> multiMap = new HashMap<String, ArrayList<String>>();
                                                                          ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:24: error: cannot find symbol
        ArrayList<String> listOne = new ArrayList<String>();
        ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:24: error: cannot find symbol
        ArrayList<String> listOne = new ArrayList<String>();
                                        ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:30: error: cannot find symbol
        ArrayList<String> listTwo = new ArrayList<String>();
        ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:30: error: cannot find symbol
        ArrayList<String> listTwo = new ArrayList<String>();
                                        ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:39: error: cannot find symbol
        Set<Entry<String, ArrayList<String>>> setMap = multiMap.entrySet();
        ^
  symbol:   class Set
  location: class HashMapTest
Main.java:39: error: cannot find symbol
        Set<Entry<String, ArrayList<String>>> setMap = multiMap.entrySet();
            ^
  symbol:   class Entry
  location: class HashMapTest
Main.java:39: error: cannot find symbol
        Set<Entry<String, ArrayList<String>>> setMap = multiMap.entrySet();
                          ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:41: error: cannot find symbol
        Iterator<Entry<String,  ArrayList<String>>> iteratorMap = setMap.iterator();
        ^
  symbol:   class Iterator
  location: class HashMapTest
Main.java:41: error: cannot find symbol
        Iterator<Entry<String,  ArrayList<String>>> iteratorMap = setMap.iterator();
                 ^
  symbol:   class Entry
  location: class HashMapTest
Main.java:41: error: cannot find symbol
        Iterator<Entry<String,  ArrayList<String>>> iteratorMap = setMap.iterator();
                                ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:46: error: package Map does not exist
        	Map.Entry<String, ArrayList<String>> entry = 
        	   ^
Main.java:46: error: cannot find symbol
        	Map.Entry<String, ArrayList<String>> entry = 
        	                  ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:47: error: package Map does not exist
        			(Map.Entry<String, ArrayList<String>>) iteratorMap.next();
        			    ^
Main.java:47: error: cannot find symbol
        			(Map.Entry<String, ArrayList<String>>) iteratorMap.next();
        			                   ^
  symbol:   class ArrayList
  location: class HashMapTest
Main.java:49: error: cannot find symbol
            List<String> values = entry.getValue();
            ^
  symbol:   class List
  location: class HashMapTest
22 errors

Standard output is empty