Static import of new features of j2se5.0

Before j2se5.0, if you need to use a static method of another class, such as a method in Java.lang.Math, you need to write the following code:

Double value = Math.log (*MATH.PI);



Now you just have to import statically, and then you can use static methods and static fields directly in your code:

Import static java.lang.math.*;
...

Double value = log (*PI);





See a detailed example. Let's first build a class that contains a static method and a static field:
PackageCom.kuaff.jdk5; Public classStaticclass { Public Static StringLABEL = "Chinese Ancient famous sword"; Public Static voidPrintlist () { String[] Swords = New String[] {"Xuan Yu Jian", "Zhan Lu", "Red Xiao Xiao", "Too Ah", "Yongyeon", "Gan", "Moye", "Fish sausage", "pure June", "Bearing Shadow"}; for( StringName:swords) { System. out.printf ("%s%n", name); }     } }
Create a new class, statically import the fields and methods above, and use them:
PackageCom.kuaff.jdk5; Import Staticcom.kuaff.jdk5.staticclass.*;//Static Import Public classStaticimportshow { Public voidTestsi () { System. out.printf ("%s:%n", LABEL);     Printlist (); } Public Static voidMain String[] args) {Staticimportshow show = NewStaticimportshow ();     Show.testsi (); } }