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2,524 symbols 4,339 edges 694 files 38 documented · 2% ● updated 12mo ago★ 1,3444 open issues

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⨍ Functions 1,518◇ Types & classes 1,006

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Extension points exported contracts — how you extend this code

Order (Interface)

(no doc) [6 implementers]

_programs_java/java_design_patterns/gof_behavioral/command/Order.java

NewInterface (Interface)

(no doc) [2 implementers]

_programs_java/java_misc_advanced_concepts/event_driven/code2_callbacks_example_2.java

Temperature (Interface)

(no doc)

_programs_kotlin/kotlin_designpatterns/patterns/src/test/kotlin/Adapter.kt

Graph (Interface)

(no doc)

_programs_kotlin/kotlin_algorithms/src/main/algo/Graph.kt

Element (Interface)

(no doc) [9 implementers]

_programs_java/java_design_patterns/gof_behavioral/visitor/Element.java

Sayable (Interface)

(no doc)

_programs_java/java_misc_advanced_concepts/lambda/code1_lambda_no_parameter.java

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Core symbols most depended-on inside this repo

↓ 74 filesAddable

_programs_java/java_misc_advanced_concepts/lambda/code4_lambda_with_without_return.java

↓ 50 filesprintable

_programs_java/java_basicsI_and_oops/interfaces/code01_interface_example.java

↓ 23 filesIterator

_programs_java/java_design_patterns/gof_behavioral/iterator/Iterator.java

↓ 18 filesShape

_programs_java/java_design_patterns/gof_creational/factory2/Shape.java

↓ 14 filesImage

_programs_java/java_design_patterns/gof_structural/proxy/Image.java

↓ 10 filesIndexedPriorityQueue

TODO: resize

_programs_kotlin/kotlin_algorithms/src/main/algo/IndexedPriorityQueue.kt

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Shape

Method 1,507

Class 943

Interface 59

Function 11

Enum 4

Languages

Java80%

Kotlin20%

Modules by API surface

_programs_java/java_basicsI_and_oops/miscellaneous/code14_realworld_oops_example_mobile.java40 symbols

_programs_kotlin/kotlin_designpatterns/patterns/src/test/kotlin/Visitor.kt16 symbols

_programs_kotlin/kotlin_designpatterns/patterns/src/test/kotlin/Builder.kt16 symbols

_programs_kotlin/kotlin_algorithms/src/main/algo/IndexedPriorityQueue.kt15 symbols

_programs_kotlin/kotlin_algorithms/src/main/algo/BinarySearchTree.kt15 symbols

_programs_kotlin/kotlin_algorithms/src/main/algo/QuadTree.kt14 symbols

_programs_kotlin/kotlin_algorithms/src/main/algo/Dequeue.kt14 symbols

_programs_java/java_design_patterns/gof_creational/builder/PersonPOJO.java14 symbols

_programs_java/java_basicsII_and_collections/generics/code17_generics_wildcards_long_example.java14 symbols

_programs_java/java_basicsI_and_oops/interfaces/code09_abstraction_abstract_classes_and_interfaces_long_example.java13 symbols

_programs_kotlin/kotlin_designpatterns/patterns/src/test/kotlin/Decorator.kt12 symbols

_programs_kotlin/kotlin_designpatterns/patterns/src/test/kotlin/AbstractFactory.kt12 symbols

For agents

$ claude mcp add Important-Java-Concepts \
  -- python -m otcore.mcp_server <graph>

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github.com/Suryakant-Bharti/Important-Java-Concepts @main

Extension points exported contracts — how you extend this code

Core symbols most depended-on inside this repo

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