如何在Java运行时为哈希表分配键和值

Question

我想在运行时接受用户的密钥，将其保存在哈希映射中，稍后再接受此密钥的值，并将其保存在同一哈希表中。

Answer 1

Firstly, create key objet using user input and perform calculations and evaluate value out of it later on you can store it in hashmap as key value pair.

class InputTest{
 public static void main(String [] arg){
   Scanner sc=new Scanner(System.in);
   HashMap<String,String> map= new HashMap<>();
   for(int I=0; I<5;I++)
    { 
      String key = sc.nextLine();
      String Val= sc.nextLine();
     map.put(key,Val);
    }
System.out.println(map);
    }
}