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You parse every time you break down a string in its constituents (numbers, dates etc).

You format every time you use a string template to forge numbers, dates etc.

So, basically, parsing and formatting have to do with conversions from and to strings.

Let's see how this works in Java:

	/*
	 *  Parsing 
	 */
	String s = "12.8"; 
	
	// Returning a primitive wrapper with unboxing 
	float fl = Float.valueOf(s); 
	System.out.println(fl); 
	
	// Returning a primitive
	fl = Float.parseFloat(s);
	System.out.println(fl); 
	
	/*
	 *  Formatting 
	 */
	float f = 11.4f;
	
	// Passing a primitive with boxing
	s = String.valueOf(f);
	System.out.println(s);
	
	// Passing a primive
	s = Float.toString(f);
	System.out.println(s);