A

HashMap

Author: Moeko Takagi

q2/moeko/AssociativeArray.java

@@ -0,0 +1,36 @@
+/*
+data.txtに書かれているデータを読み込んで
+member[名前]["weight"],member[名前]["height"]で身長、体重にアクセス出来る連想配列を作れ
+ただし、data.txtのデータは"名前,身長,体重"となっている
+*/
+
+import java.util.HashMap;
+import java.io.FileReader;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.FileNotFoundException;
+
+public class AssociativeArray{
+	public static void main(String[] args){
+		HashMap<String, HashMap<String, Double>> map = new HashMap<String, HashMap<String, Double>>();
+		try{
+			BufferedReader reader = new BufferedReader(new FileReader("../data.txt"));
+			String s = reader.readLine();
+			while(s != null){
+				String[] strs = s.split(",", 0);
+				map.put(strs[0], new HashMap<String, Double>());
+				map.get(strs[0]).put("height", Double.parseDouble(strs[1]));
+				map.get(strs[0]).put("weight", Double.parseDouble(strs[2]));
+				s = reader.readLine();
+			}
+		}catch(FileNotFoundException e){
+			System.out.println(e);
+		}catch(IOException e){
+			System.out.println(e);
+		}
+		System.out.println(map.get("sato").get("height"));
+		System.out.println(map.get("uchimura").get("weight"));
+	}
+}
+
+