题解 | #简单错误记录#

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        Map<String,Integer> dataMap = new LinkedHashMap<>();
        Map<String, String> rootMap = new HashMap<>();
        while (in.hasNext()) {
            String input = in.nextLine();
            if(input.equals("")){
                break;
            }
            String fileAddr = input.split(" ")[0];
            String errorLine = input.split(" ")[1];
            String errorClazz = fileAddr.substring(fileAddr.lastIndexOf("\\")+1);
            if(errorClazz.length() > 16){
                errorClazz = errorClazz.substring(errorClazz.length() - 16);
            }
            String key = errorClazz+":"+errorLine;
            if(dataMap.get(key) == null){
                dataMap.put(key,1);
            } else {
                dataMap.put(key,dataMap.get(key)+1);
            }
        }
        dataMap.entrySet().stream().skip(dataMap.size() - 8>0 ?  dataMap.size() - 8 : 0).forEach(a -> System.out.println(a.getKey().split(":")[0]+" "+ a.getKey().split(":")[1]+" "+a.getValue()));
    }
}