Work on serializer.

tolerant-reader/src/main/java/com/iluwatar/RainbowFish.java

@@ -0,0 +1,38 @@
+package com.iluwatar;
+
+import java.io.Serializable;
+
+public class RainbowFish implements Serializable {
+
+	private static final long serialVersionUID = 1L;
+	
+	private String name;
+	private int age;
+	private int lengthMeters;
+	private int weightTons;
+	
+	public String getName() {
+		return name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	public int getAge() {
+		return age;
+	}
+	public void setAge(int age) {
+		this.age = age;
+	}
+	public int getLengthMeters() {
+		return lengthMeters;
+	}
+	public void setLengthMeters(int lengthMeters) {
+		this.lengthMeters = lengthMeters;
+	}
+	public int getWeightTons() {
+		return weightTons;
+	}
+	public void setWeightTons(int weightTons) {
+		this.weightTons = weightTons;
+	}
+}

tolerant-reader/src/main/java/com/iluwatar/RainbowFishSerializer.java

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+package com.iluwatar;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.util.HashMap;
+import java.util.Map;
+
+public class RainbowFishSerializer {
+
+	public void write(RainbowFish rainbowFish, String filename) {
+		Map<String, String> map = new HashMap<>();
+		map.put("name", rainbowFish.getName());
+		map.put("age", String.format("%d", rainbowFish.getAge()));
+		map.put("lengthMeters", String.format("%d", rainbowFish.getLengthMeters()));
+		map.put("weightTons", String.format("%d", rainbowFish.getWeightTons()));
+		try {
+			FileOutputStream fileOut = new FileOutputStream("fish.ser");
+			ObjectOutputStream objOut = new ObjectOutputStream(fileOut);
+			objOut.writeObject(map);
+			objOut.close();
+			fileOut.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+	
+//	public RainbowFish read(String filename) {
+//	}
+}

tolerant-reader/src/main/java/com/iluwatar/RainbowFishV2.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class RainbowFishV2 extends RainbowFish {
+	
+	private boolean sleeping;
+	private boolean hungry;
+	private boolean angry;
+
+}