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 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
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