new hashmap java
Map<String, String> myMap = new HashMap<String, String>() {{
put("a", "b");
put("c", "d");
}};new hashmap java
Map<String, String> myMap = new HashMap<String, String>() {{
put("a", "b");
put("c", "d");
}};java hashmap syntax
// Import the HashMap class
import java.util.HashMap;
// First Example
// Create a HashMap object called capitalCities
HashMap<String, String> capitalCities = new HashMap<String, String>();
// Add keys and values (Country, City)
capitalCities.put("England", "London");
capitalCities.put("Germany", "Berlin");
capitalCities.put("Norway", "Oslo");
capitalCities.put("USA", "Washington DC");
System.out.println(capitalCities);
//Second Example
// Create a HashMap object called stGrade
Map<String, Integer> stGrade = new HashMap<String, Integer>();
// Insert elements
stGrade.put("aaron", new Integer(90));
stGrade.put("isaac", new Integer(100));
stGrade.put("john", new Integer(35));
stGrade.put("mohammad", new Integer(100));
// Get value
stGrade.get("mohammad"); // returns 100
stGrade.get("aaron"); // returns 90
stGrade.get("john"); // returns 35
stGrade.get("isaac"); // returns 100declare hashmap java
//remember to first import java.util.*; first
//you can swap out string or integer for other data types
Map<String, Integer> d = new HashMap<>();java hashmap example
//Hash map creation
Map< String,Integer> hm =
new HashMap< String,Integer>();
//inserting elements into hashmap
hm.put("a", new Integer(100));
hm.put("b", new Integer(200));
hm.put("c", new Integer(300));
hm.put("d", new Integer(400));declare a hashmap in java
HashMap<Integer,String> map=new HashMap<Integer,String>();//Creating HashMaphow to create a hashmap in java
HashMap<Integer,String> map=new HashMap<Integer,String>();//key is integer, value is StringCopyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
