Example usage for java.util Map size

Introduction

In this page you can find the example usage for java.util Map size.

Prototype

int size();

Source Link

Document

Returns the number of key-value mappings in this map.

Usage

From source file:Main.java

public static boolean isNotEmpty(Map map) {
    return map != null && map.size() > 0;
}

From source file:Main.java

public static boolean isNotEmpty(Map<?, ?> map) {
    return map != null && map.size() > 0;
}

From source file:Main.java

public static boolean isEmpty(Map<?, ?> map) {
    return map == null || map.size() == 0 ? true : false;
}

From source file:Main.java

/**
 * Returns the size of the specified map or {@code 0} if the map is
 * {@code null}./*from  w ww.j  a  va  2s .  c  o  m*/
 *
 * @param m
 *            the map to check
 * @return the size of the specified map or {@code 0} if the map is
 *         {@code null}.
 * @since 1.2
 */
public static int size(Map m) {
    return m != null ? m.size() : 0;
}

From source file:Main.java

public static boolean isNEmpty(Map<?, ?> map) {
    if ((map != null) && (map.size() > 0)) {
        return true;
    }//from w w  w . j  a v  a2  s.co m
    return false;
}

From source file:Main.java

public static boolean isEmpty(Map<?, ?> map) {
    return map == null || map.size() == 0;
}

From source file:Main.java

final static public boolean isEmpty(Map<Object, Object> map) {
    return map == null || map.size() == 0;
}

From source file:Main.java

public static int size(Map map) {
    return isEmpty(map) ? 0 : map.size();
}

From source file:Main.java

@SuppressWarnings("rawtypes")
public static boolean isNotEmpty(Map map) {
    return map != null && map.size() > 0;
}

From source file:Main.java

public static <K, V> HashMap<K, V> toHashMap(Map<K, V> map) {
    HashMap<K, V> result = new HashMap<>(map.size());
    result.putAll(map);//from   w  w w  .j a  va2s .c  o  m
    return result;
}