How to iterate hashmap using foreach loop and keyset method-Method 1

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[Dreamazium]

Thank you, thank you, thank you sir! Thank. You. Sir.

I was having trouble with this. I knew to use the keySet() in a for each loop, but didn’t know how to get the entries, which is what i wanted. When i see you use get() it all became clear.

[chetankumar]

public class Solution {
public int getSum(int A, int B, int[] C) {
HashMap<Integer, Integer> map= new HashMap<>();
for(int i=0;i<A;i++){
if(map.containsKey(i)){
map.put(C[i], map.get(C[i])+1);
}
else{
map.put(C[i], 1);
}
}
int sum=0;
for(int k:map.keySet()){
if(map.get(k)==B){
sum=sum+k;
}
}
return sum;
}
}

this is not working..why