Why Does my entries not work with .hasNext()?

Question

Im doing this code with HeapSort and i want to make it read a txt file count and order alphabetical all the words, but i get an error on the while(entry.hasNext())
that i cant solve, anyone knows why this happens??

public static void main(String[] args) throws FileNotFoundException, IOException {

String cami="C:\\Users\\Carlos\\Documents\\NetBeansProjects\\Practica3_Text\\src\\";
FileReader fr = new FileReader(cami+"TM.txt");
BufferedReader br = new BufferedReader(fr);

int n;
int mida=0;
String s = br.readLine(); // reads a single line

Map<String,Integer> Map = new HashMap<String, Integer>();

while(s!=null) {

String[] t=s.split("\\s"); // split by spaces and generates an array of Strings -words-

for(int i=0;i<t.length;i++){
Iterator<Map.Entry<String, Integer>> entries = Map.entrySet().iterator();

if(Map.containsKey(t[i])){

for(Map.Entry<String, Integer> entry : Map.entrySet()){
System.out.println("Clave: "+ entry.getKey()+"Valor: "+entry.getValue());
if(t[i].equals(entry.getKey())){
Map.put(entry.getKey(),entry.getValue()+1);
}}

}else{
Map.put(t[i],1);

}
}
s = br.readLine();
} HeapSort<String> hs = new HeapSort<>(mida);

br.close();

while(entry.hasNext()){
Map.Entry<String, Integer> entry = entry.next();
hs.Insert(entry.getKey());
//System.out.println("clave=" + hs.Lesser() + ", valor=" + Map.get(hs.Lesser()));
}

while(!hs.Empty()){

Answer 1

Java?

Answer 2

Java?

Answer 3

yeah it's java

Answer 4

hasnext() function is used for checking if there are any more input from the user or not .
for example:

Scanner sc=new Scanner(System.in);
int [] are= new are[100];
l=0;
while(sc.hasnext())
{
arr[I]=sc.nextInt();
l++;
}
I doubt if it can be used with string or not.