More Saving Issues

public void save (String fileName){
	ChangeJar saveJar = new ChangeJar();

	saveJar.quarters = quarters;
	saveJar.dimes = dimes;
	saveJar.nickels = nickels;
	saveJar.pennies = pennies;
	try {
		FileOutputStream fileOut = new FileOutputStream("C:\\" + fileName + ".cjr");
		ObjectOutputStream out = new ObjectOutputStream(fileOut);
		out.writeObject(saveJar);
		out.close();
		fileOut.close();
		System.out.printf("Saved ChangeJar is saved in C:\\" + fileName + ".cjr");
	}catch(IOException i) {
		i.printStackTrace();
	}
}

public ChangeJar load (String fileName){
	try {
		FileInputStream fileIn = new FileInputStream("C:\\" + fileName + ".cjr");
		ObjectInputStream in = new ObjectInputStream(fileIn);
		ChangeJar loadJar = (ChangeJar) in.readObject();
		in.close();
		fileIn.close();
		return loadJar;
	}catch(IOException i) {
		i.printStackTrace();
		return null;
	}catch(ClassNotFoundException c) {
		System.out.println("ChangeJar class not found");
		c.printStackTrace();
		return null;
	}
}

Main Method Test
// Creates a new ChangeJar, then saves it to the computer. After reseting the jar to have no money in
// it, loads the saved jar file.
	ChangeJar s5 = new ChangeJar (1.64);
	System.out.println (s5);
	s5.save("file1");
	s5 = new ChangeJar ();
	s5.load("file1");
	System.out.println (s5);
	System.out.println("Should contain\t 6 quarter(s), 1 dime(s), 0 nickel(s) and 4 penny(s).\n");

Results
This jar contains 6 quarter(s), 1 dime(s), 0 nickel(s), and 4 penny(s).

java.io.NotSerializableException: package1.ChangeJar
	at java.io.ObjectOutputStream.writeObject0(Unknown Source)
	at java.io.ObjectOutputStream.writeObject(Unknown Source)
	at package1.ChangeJar.save(ChangeJar.java:522)
	at package1.ChangeJar.main(ChangeJar.java:642)
java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: package1.ChangeJar
	at java.io.ObjectInputStream.readObject0(Unknown Source)
	at java.io.ObjectInputStream.readObject(Unknown Source)
	at package1.ChangeJar.load(ChangeJar.java:535)
	at package1.ChangeJar.main(ChangeJar.java:644)
Caused by: java.io.NotSerializableException: package1.ChangeJar
	at java.io.ObjectOutputStream.writeObject0(Unknown Source)
	at java.io.ObjectOutputStream.writeObject(Unknown Source)
	at package1.ChangeJar.save(ChangeJar.java:522)
	at package1.ChangeJar.main(ChangeJar.java:642)

This jar contains 0 quarter(s), 0 dime(s), 0 nickel(s), and 0 penny(s).
Should contain	 6 quarter(s), 1 dime(s), 0 nickel(s) and 4 penny(s).