Example usage for java.util Collection isEmpty

Introduction

In this page you can find the example usage for java.util Collection isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this collection contains no elements.

Usage

From source file:Main.java

public static <E> boolean isEmpty(Collection<E> collection) {
    return collection == null || collection.isEmpty();
}

From source file:Main.java

public static boolean isEmptyCollection(Collection<?> cols) {
    if (cols == null || cols.isEmpty()) {
        return true;
    }/*from w  ww  . j  a va 2  s  .  co m*/
    Iterator<?> ite = cols.iterator();
    while (ite.hasNext()) {
        if (ite.next() == null) {
            return true;
        }
    }
    return false;
}

From source file:Main.java

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

From source file:Main.java

/**
 * added by liyong/*from ww  w  .ja v  a2  s. c o  m*/
 */
public static boolean isEmpty(Collection c) {
    return c == null || c.isEmpty();
}

From source file:Main.java

public static <T> boolean isEmpty(Collection<T> collection) {
    return (collection == null || collection.isEmpty());
}

From source file:Main.java

public static boolean isNull(Collection<?> collection) {
    if (collection == null || collection.isEmpty()) {
        return true;
    }/* w w  w. j a  v a  2  s.c o  m*/
    return false;
}

From source file:Main.java

/**
 * Implementation of the OCL//from   www  . j  a va2s  .c  om
 * <tt>Collection::notEmpty() : Boolean</tt>
 * operation.
 * 
 * @param self the source collection
 * @return whether the collection has any elements
 */
public static boolean notEmpty(Collection<?> self) {
    return !self.isEmpty();
}

From source file:Main.java

public static boolean nonEmpty(Collection<?> col) {
    return col != null && !col.isEmpty();
}

From source file:Main.java

public static boolean isNotEmpty(Collection<?> collection) {
    return collection != null && !collection.isEmpty();
}

From source file:Main.java

public static <T> boolean isEmpty(Collection<T> aCollection) {
    return (aCollection == null || aCollection.isEmpty());
}