Hardwood_Species.java

import java.util.*;
public class main{
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int numbers = input.nextInt();
        String str2 = input.nextLine();
        ArrayList<String> lists = new ArrayList<String>();
        String result = "";
        while(input.hasNext()) {
        	String str = input.nextLine();
        	lists.add(str);
        }
        
        ArrayList<String> list = new ArrayList<String>();
        for(int i=1;i<lists.size();i++) {
        	if(lists.get(i).equals("")) {
        		Collections.sort(list);
        		int count = 0;
        		for(int j=0;j<list.size();j++) {
        			//System.out.println(list.get(j));
        			
        			if(j != list.size()-1) {
        				if(!list.get(j).equals(list.get(j+1))) {
        					count += 1;
        					float res = (float)count/(float)(list.size());
        					result = list.get(j) + " " + "%.4f" + "\r\n";
        					System.out.printf(result, res * 100);
        					result = "";
        					count = 0;
        				}
        				else {
        					count += 1;
        				}
        			}
        			else {
        				count = 1;
        				float res = (float)count/(float)(list.size());
        				result = list.get(j) + " " + "%.4f" + "\r\n";
        				System.out.printf(result, res * 100);
        				result = "";
        			}
        			
        		}
        		
        		if(i != lists.size()-1)
        			System.out.println();
        		list = new ArrayList<String>();
        	}
        	else {
        		list.add(lists.get(i));
        	}
        	
        	if(i == lists.size()-1) {
        		Collections.sort(list);
        		int count = 0;
        		for(int j=0;j<list.size();j++) {
        			//System.out.println(list.get(j));
        			
        			if(j != list.size()-1) {
        				if(!list.get(j).equals(list.get(j+1))) {
        					count += 1;
        					float res = (float)count/(float)(list.size());
        					result = list.get(j) + " " + "%.4f" + "\r\n";
        					System.out.printf(result, res * 100);
        					result = "";
        					count = 0;
        				}
        				else {
        					count += 1;
        				}
        			}
        			else {
        				count += 1;
        				float res = (float)count/(float)(list.size());
        				result = list.get(j) + " " + "%.4f" + "\r\n";
        				System.out.printf(result, res * 100);
        				result = "";
        			}
        			
        		}
        	}
        }
        
    }
};