G.6 Printing Strings and Characters
The c and s conversion characters print individual characters and strings, respectively. Conversion characters c and C require a char argument. Conversion characters s and S can take a String or any Object as an argument. When conversion characters C and S are used, the output is displayed in uppercase letters. Figure G.5 displays characters, strings and objects with conversion characters c and s. Autoboxing occurs at line 9 when an int constant is assigned to an Integer object. Line 15 outputs an Integer argument with the conversion character s, which implicitly invokes the toString method to get the integer value. You can also output an Integer object using the %d format specifier. In this case, the
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