(For students familiar with XML)   Suppose a class A's purpose in life is to convert a...

(For students familiar with XML)   Suppose a class A's purpose in life is to convert an object of another class B into textual form for storage to a file.   Suppose there are 3 parts to objects of class B that we will call "var", "const", and "virtual".   Class A will convert these parts into Strings and enclose them in tags of the form and where the kind indicates the type of part, which for our purposes we will suppose are var, const, and virtual.   These parts might also be nested.   A well-designed class A will have a method to convert each kind of part of B into a String, and then it will append those strings to finish the conversion.   Each method might look like the following:

public String convertVar() {		String result = " ";		 / /...convert rest of var part of B...		result += " ";		return result;	}	public String convertConst() {		String result = " ";		//...convert rest of const part of B...		result += " ";		return result;	}	public String convertVirtual() {		String result = " ";		//...convert rest of virtual part of B...		result += " ";		return result;	}