What does the static modifier after import mean

Question

When used like this   import static com showboy Myclass   public class Anotherclass     what s the difference between import static com showboy Myclass and import com showboy Myclass

User · Answer

Very good exaple  npt tipical with MAth in wwww     https   www java2novice com java-fundamentals static-import  public class MyStaticMembClass         public static final int INCREMENT   2            public static int incrementNumber int number           return number INCREMENT           in onother file inlude import static com java2novice stat imp pac1 MyStaticMembClass

User · Answer

The import allows the java programmer to access classes of a package without package qualification    The static import feature allows to access the static members of a class without the class qualification    The import provides accessibility to classes and interface whereas static import provides accessibility to static members of the class   Example    With import  import java lang System        class StaticImportExample        public static void main String args               System out println  Hello           System out println  Java                   With static import  import static java lang System        class StaticImportExample      public static void main String args           out println  Hello     Now no need of System out      out println  Java                  See also   What is static import in Java 5

User · Answer

The static modifier after import is for retrieving using static fields of a class  One area in which I use import static is for retrieving constants from a class  We can also apply import static on static methods  Make sure to type import static because static import is wrong    What is static import in Java - JavaRevisited  - A very good resource to know more about import static

User · Answer

There is no difference between those two imports you state   You can  however  use the static import to allow unqualified access to static members of other classes   Where I used to have to do this   import org apache commons lang StringUtils                          if  StringUtils isBlank aString                               I can do this   import static org apache commons lang StringUtils isBlank                          if  isBlank aString                               You can see more in the documentation

User · Answer

The basic idea of static import is that whenever you are using a static class a static variable or an enum you can import them and save yourself from some typing   I will elaborate my point with example   import java lang Math   class WithoutStaticImports     public static void main String    args      System out println  round     Math round 1032 897      System out println  min     Math min 60 102           Same code  with static imports   import static java lang System out  import static java lang Math     class WithStaticImports     public static void main String    args        out println  round     round 1032 897        out println  min     min 60 102            Note  static import can make your code confusing to read

User · Answer

the difference between  import static com showboy Myclass  and  import com showboy Myclass     The first should generate a compiler error since the static import only works for importing fields or member types   assuming MyClass is not an inner class or member from showboy   I think you meant   import static com showboy MyClass      which makes all static fields and members from MyClass available in the actual compilation unit without having to qualify them    as explained above

User · Answer

See Documentation     The static import declaration is   analogous to the normal import   declaration  Where the normal import   declaration imports classes from   packages  allowing them to be used   without package qualification  the   static import declaration imports   static members from classes  allowing   them to be used without class   qualification       So when should you use static import    Very sparingly  Only use it when you d   otherwise be tempted to declare local   copies of constants  or to abuse   inheritance  the Constant Interface   Antipattern   In other words  use it   when you require frequent access to   static members from one or two   classes  If you overuse the static   import feature  it can make your   program unreadable and unmaintainable    polluting its namespace with all the   static members you import  Readers of   your code  including you  a few months   after you wrote it  will not know   which class a static member comes   from  Importing all of the static   members from a class can be   particularly harmful to readability    if you need only one or two members    import them individually  Used   appropriately  static import can make   your program more readable  by   removing the boilerplate of repetition   of class names

User · Answer

Say you have static fields and methods inside a class called MyClass inside a package called myPackage and you want to access them  directly  by typing    myStaticField or myStaticMethod without typing each time MyClass myStaticField or MyClass myStaticMethod   Note   you need to do an    import myPackage MyClass  or myPackage       for accessing the other resources

User · Answer

Static import is used to import static fields   method of a class instead of   package test   import org example Foo   class A     B b   Foo B INSTANCE       You can write    package test   import static org example Foo B INSTANCE   class A     B b   B INSTANCE       It is useful if you are often used a constant from another class in your code and if the static import is not ambiguous   Btw  in your example  import static org example Myclass   won t work   import is for class  import static is for static members of a class

[java] What does the "static" modifier after "import" mean?

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