Search a value for a given key in a HashMap

Question

How do you search for a key in a HashMap? In this program, when the user enters a key the code should arrange to search the hashmap for the corresponding value and

Answer 1

You wrote

HashMap hashMap = new HashMap();
...
int x = scan.nextInt();
value = hashMap.get("x");

must be:

Map hashMap = new HashMap();
...
int x = scan.nextInt();
value = hashMap.get(x);

EDIT or without generics, like said in the comments:

int x = scan.nextInt();
value = (String) hashMap.get(new Integer(x));