Java™ How To Program (Early Objects), Tenth Edition

Demonstrating static Import

Figure 8.14 demonstrates a static import. Line 3 is a static import declaration, which imports all static fields and methods of class Math from package java.lang. Lines 9–12 access the Math class’s static fields E (line 11) and PI (line 12) and the static methods sqrt (line 9) and ceil (line 10) without preceding the field names or method names with class name Math and a dot.

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 1   // Fig. 8.14: StaticImportTest.java 2   // Static import of Math class methods. 3   import static java.lang.Math.*; 4  5   public class StaticImportTest 6   { 7      public static void main(String[] args) 8      { 9         System.out.printf("sqrt(900.0) = %.1f%n", sqrt(900.0));10         System.out.printf( ...