public class WhatHappensPrintf {

/**

Exercise 3.1 When you use printf, the Java compiler does not check your

format string. See what happens if you try to display a value with type int

using %f. And what happens if you display a double using %d? What if you

use two format specifiers, but then provide only one value?

**/

public static void main (String[] arguments) {

final int x = 10;

final double y = 3.25;

//print int with %f

System.out.printf("Print int with floating point format mask %f", x);

// throws java.util.IllegalFormatConversionException

//print double with %d

System.out.printf("Print double with integer format mask %d", y);

// throws java.util.IllegalFormatConversionException

//print with format specifiers but only one argument

System.out.printf("Print with two format specifiers %d and %f, but with only one argument supplied.", x);

// throws java.util.MissingFormatArgumentException

}

}