Spring begginer question

[1110]

Hello I have just start learning spring and something is not clear to me at the beggining of the http://www.springbyexample.org/ book.

public void record(Candidate candidate){
		int count = 0;
		
		if (!hVotes.containsKey(candidate)){
			hVotes.put(candidate, count);
		}
		else{
			count = hVotes.get(candidate);
		}
	}

On this line "count = hVotes.get(candidate);" I get error. "get" method receive int and I try to pass candidate object, but there is no code in the book for candidate so I don't know what to do here? What am I doing wrong?
Thanks

[achyut345]

your requirement is not pretty clear. can you write the whole code.

[1110]

your requirement is not pretty clear. can you write the whole code.

From the book:

package org.springbyexample.vote;

public class VotingBooth {

    VoteRecorder voteRecorder = new VoteRecorder();
    
    public void vote(Candidate candidate) {
        voteRecorder.record(candidate);
    }
    
    class VoteRecorder {
        Map hVotes = new HashMap();
        
        public void record(Candidate candidate) {
            int count = 0;
            
            if (!hVotes.containsKey(candidate)){
                hVotes.put(candidate, count);
            } else {
                count = hVotes.get(candidate);
            }
            
            count++; 
            
            hVotes.put(candidate, count);  
            
        }
    }

}

But there is no implementation for the candidate, so I created just simple type:
Candite class

public class Candidate {
     public Candidate(){}
}

But when I try to do this "count = hVotes.get(candidate);" in code I get an error because hVotes.get(ask for int type not candidate). How to pass candidate here? I try with cast but Candidate object can not be casted to the int type.

[fdemilde]

hi on java 6 this class

import java.util.Map;
import java.util.HashMap;

public class VotingBooth {

    VoteRecorder voteRecorder = new VoteRecorder();
    
    public void vote(Candidate candidate) {
        voteRecorder.record(candidate);
    }
    
    class VoteRecorder {
        Map hVotes = new HashMap();
        
        public void record(Candidate candidate) {
            int count = 0;
            
            if (!hVotes.containsKey(candidate)){
                hVotes.put(candidate, count);
            } else {
                count = ((Integer) hVotes.get(candidate)).intValue();
            }
            
            count++; 
            
            hVotes.put(candidate, count);  
            
        }
    }

}

class Candidate {
  public Candidate(){};
} 

compiles according to

http://www.innovation.ch/java/java_compile.html 

[1110]

Thank you now it works

[fdemilde]

instead of using a non typed Map, using generics would have worked as well

Map<Candidate,Integer> hVotes = new HashMap<Candidate,Integer>(); 

and then the record method stays

public void record(Candidate candidate) {
            int count = 0;
            
            if (!hVotes.containsKey(candidate)){
                hVotes.put(candidate, count);
            } else {
                count = hVotes.get(candidate);
            }
            
            count++; 
            
            hVotes.put(candidate, count);  
            
        }