📄 chat.java
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package com.signorinolong.test.chat;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import com.signorinolong.test.chat.model.Message;
public interface Chat {
public abstract void sendMessage(String user,String message,String channel);
public abstract List getMessageByChannel(String channel);
public abstract Map getAllMessage();
public abstract Map getMessageByUser(String username);
public abstract void sendMessageToUser(String fromuser,String message,String touser);
public abstract LinkedList<Message> getUserMessage(String user);
public abstract void startWork();
}
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