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FOR YOUR CURIOSITY

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CORE API / NOTES</>↗
Core API10 Mar 2025

How do I use the IntConsumer functional interface in Java?

The IntConsumer functional interface in Java belongs to the java.util.function package and is designed to represent an operation that accepts a single int argument and performs an operation without returning a result (i.e., it produces side effects typically). 1. Functional Interface Definition @FunctionalInterface public interface IntConsumer { void accept(int value); } Method: accept(int value) Takes […]

Wayan · 3 min read
CORE API / NOTES</>↗
Core API10 Mar 2025

How do I use the IntBinaryOperator functional interface in Java?

To use the IntBinaryOperator functional interface in Java, we should understand that it is part of the java.util.function package and is specifically designed for operations that take two int values as arguments and return an int result. It is typically used for mathematical or logical operations involving two integers. Here is a detailed guide on […]

Wayan · 3 min read
CORE API / NOTES</>↗
Core API10 Mar 2025

How do I use the Function functional interface in Java?

The Function interface is part of the java.util.function package and represents a single argument function that produces a result. It is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference. Here’s the function signature: @FunctionalInterface public interface Function<T, R> { R apply(T t); } It […]

Wayan · 3 min read
CORE API / NOTES</>↗
Core API09 Mar 2025

How do I use the DoubleUnaryOperator functional interface in Java?

The DoubleUnaryOperator functional interface in Java is part of the java.util.function package and represents a functional interface for operations that accept a single double value as input and produce a double value as output. It is typically used in scenarios where mathematical or computational transformations need to be applied to a double value. Functional Interface […]

Wayan · 4 min read
CORE API / NOTES</>↗
Core API08 Mar 2025

How do I use the DoubleToLongFunction functional interface in Java?

The DoubleToLongFunction interface in Java, part of the java.util.function package, represents a functional interface with a method that accepts a double-valued argument and produces a long-valued result. It is often used when a computation or conversion needs to be performed from a double to a long. Functional Interface The DoubleToLongFunction interface is annotated with @FunctionalInterface, […]

Wayan · 4 min read
CORE API / NOTES</>↗
Core API07 Mar 2025

How do I use the DoubleToIntFunction functional interface in Java?

The DoubleToIntFunction interface in Java, part of the java.util.function package, represents a function that accepts a single double-valued argument and produces an int-valued result. It can be used when a conversion or computation needs to be performed from a double type to an int. Functional Interface The DoubleToIntFunction interface is annotated with @FunctionalInterface, meaning it […]

Wayan · 3 min read
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Putu Adi Guna Permana
ABOUT THE AUTHOR

Dr (C). Ir. Putu Adi Guna Permana, S.Kom., M.Kom., IPM., ASEAN Eng.

Writer and founder of Diary Coding — sharing notes, tutorials, and experiences about programming for anyone who wants to keep learning.