Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.Collection;

import java.util.Map;

import java.util.function.BiConsumer;
import java.util.function.Consumer;

public class Main {
    public static <E> void forEach(Collection<E> c, Consumer<? super E> action) {
        if (isNullOrEmpty(c)) {
            return;
        }
        for (E item : c) {
            action.accept(item);
        }
    }

    public static <K, V> void forEach(Map<K, V> m, BiConsumer<K, V> consumer) {
        if (isNullOrEmpty(m)) {
            return;
        }
        for (Map.Entry<K, V> entry : m.entrySet()) {
            consumer.accept(entry.getKey(), entry.getValue());
        }
    }

    public static boolean isNullOrEmpty(Collection<?> c) {
        return c == null || c.isEmpty();
    }

    public static <K, V> boolean isNullOrEmpty(Map<K, V> map) {
        return map == null || map.isEmpty();
    }
}