Maps

• Map is a collection of Key value pairs
• Keys are always unique, Values can be duplicate

//Add/Update
scoreMap.put('Ram', 95);

//Retrive/get
Integer marks = scoreMap.get('Ram');

//Remove with ID
scoreMap.remove('Sam');


//Get All Keys
Set allKeys = scoreMap.keySet();

//Get All Values
List allValues = scoreMap.values();