Java How To Program, Late Objects, 11th Edition

... integer 7 is 49 Called square with double argument: 7.500000 Square of double 7.5 is 56.250000 

Line 7 invokes method square with the argument 7. Literal integer values are treated as type int, so the method call in line 7 invokes the version of square at lines 12–16 that specifies an int parameter. Similarly, line 8 invokes method square with the argument 7.5. Literal floating-point values are treated as type double, so the method call in line 8 invokes the version of square at lines 19–23 that specifies a double parameter. Each method first outputs a line of text to prove that the proper method was called in each case. The values in lines 8 and 20 are displayed with the format specifier %f format specifier, which is used to output values of type ...