Java Supplier Archives - Hướng Dẫn Java

Tìm hiểu về Functional Interface Supplier trong Java

Supplier là một Functional Interface, do đó nó chỉ chứa một phương thức abstract như sau:

package java.util.function;

/**
 * Represents a supplier of results.
 *
 * <p>There is no requirement that a new or distinct result be returned each
 * time the supplier is invoked.
 *
 * <p>This is a <a href="package-summary.html">functional interface</a>
 * whose functional method is {@link #get()}.
 *
 * @param <T> the type of results supplied by this supplier
 *
 * @since 1.8
 */
@FunctionalInterface
public interface Supplier<T> {

    /**
     * Gets a result.
     *
     * @return a result
     */
    T get();
}

package java.util.function;

/**

* Represents a supplier of results.

* <p>There is no requirement that a new or distinct result be returned each

* time the supplier is invoked.

* <p>This is a <a href="package-summary.html">functional interface</a>

* whose functional method is {@link #get()}.

* @param <T> the type of results supplied by this supplier

* @since 1.8

@FunctionalInterface

public interface Supplier<T> {

/**

* Gets a result.

* @return a result

T get();

}

Interface này đơn giản chỉ là trả về giá trị trong context mà nó đang được sử dụng bằng phương thức get(). Ví dụ như mình có danh… Read More