Class Definition » Static Import

Static import

In Java 5 you can import static fields using the import static keywords.

Before Java 5, to use a static final field in the Calendar class, you must first import the Calendar class.

import java.util.Calendar;

Then, you can use it by using the notation className.staticField.

if (today == Calendar.SATURDAY)

In Java 5, you can do

import static java.util.Calendar.SATURDAY; if (today == SATURDAY)     Static importing the Math Class Methods import static java.lang.Math.sqrt; public class MainClass {   public static void main(String[] arg) {     System.out.println(sqrt(2));   } } 1.4142135623730951     Use static import to bring sqrt() and pow() into view. import static java.lang.Math.pow; import static java.lang.Math.sqrt; class Hypot {   public static void main(String args[]) {     double side1, side2;     double hypot;     side1 = 3.0;     side2 = 4.0;     hypot = sqrt(pow(side1, 2) + pow(side2, 2));     System.out.println("Given sides of lengths " + side1 + " and "   + side2 + " the hypotenuse is "         + hypot);   } }   http://www.java2s.com/Tutorial/Java/0100 __Class-Definition/Catalog0100__Class-Definition.htm