Java How to Program, Early Objects, 11th Edition

...  
 1   // Fig. I.2: IntegerConversionTest.java
 2   // Using the integer conversion characters.
 3
 4   public class IntegerConversionTest
 5   {
 6      public static void main(String[] args)
 7      {
 8         System.out.printf("%d\n", 26);
 9         System.out.printf("%d\n", +26);
10         System.out.printf("%d\n", -26);
11         System.out.printf("%o\n", 26);
12         System.out.printf("%x\n", 26);
13         System.out.printf("%X\n", 26);
14      } // end main
15   } // end class IntegerConversionTest

26
26
-26
32
1a
1A

The printf method has the form

printf(format-string, argument-list);

where format-string describes the output format, and the optional argument-list contains the values that correspond to each format specifier in format-string. There can be many format specifiers in one format string. ...