#Java - Code Snippets for '#Java 9'

#Java - Code Snippets for '#Java 9' - 11 code snippet(s) found

Sample 1. Code to get Module name for the class

Module module = Test.class.getModule();

System.out.println(module.getName());

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Sample 2. Code to get all packages of a Module

public class Test {

   public static void main(String[] args) {

      Module module = Test.class.getModule();

      System.out.println(module.getPackages());

   }   

}

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Sample 3. Code to get Module name for List class

Module module = java.util.List.class.getModule();

System.out.println(module.getName()); // prints java.base

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Sample 4. Code to print all packages of a module

Module module = java.util.List.class.getModule();

System.out.println(module.getPackages());

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Sample 5. Code to get exports of a particular Module

Module module = java.util.List.class.getModule();

ModuleDescriptor moduleDescriptor = module.getDescriptor();

System.out.println(moduleDescriptor.exports());

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Sample 6. Code to get ModuleDescriptor from a particular Module

Module module = java.util.List.class.getModule();

ModuleDescriptor moduleDescriptor = module.getDescriptor();

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Sample 7. Code to get main class in a particular module

Module module = java.util.List.class.getModule();

ModuleDescriptor moduleDescriptor = module.getDescriptor();

System.out.println(moduleDescriptor.mainClass());

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Sample 8. Usage of JavaBean Annotation

@JavaBean(description = "",defaultProperty="",defaultEventSet="")

public class Test {

}

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Sample 9. Initializing a list using factory method in java 9

Usage of List.of()

List<String> countryList = List.of("France","Belgium","Germany");

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Sample 10. Initializing a map using factory method in java 9

Usage of Map.of()

Map<String,String> countryCodeMap = Map.of("France","FR","United States","US","Canada","CA");

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Sample 11. Code Sample for

jdk.jshell.JShell;
jdk.jshell.MethodSnippet;
jdk.jshell.Snippet;

JShell.Builder builder =

                  JShell.builder()

                   .in(System.in)

                   .out(System.out)

                   .err(System.out);

       

JShell jshell = builder.build();

       

System.out.println(jshell.snippets()

         .filter(sn -> sn.kind() == Snippet.Kind.METHOD)

         .map(sn -> (MethodSnippet) sn).findFirst().get().signature());

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