Example usage for java.util Collection size

Introduction

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

Prototype

int size();

Source Link

Document

Returns the number of elements in this collection.

Usage

From source file:Main.java

public static boolean isNotEmptyList(Collection list) {
    return list != null && list.size() > 0;
}

From source file:Main.java

public static boolean isEmpty(Collection<?> c) {
    return c == null || c.size() == 0;
}

From source file:Main.java

public static <T> T[] convertArrayToList(Collection<T> list) {
    return (T[]) (list.size() > 0
            ? list.toArray((Object[]) Array.newInstance(list.iterator().next().getClass(), list.size()))
            : null);/*from  w  w w  .j a v a  2 s  .c  om*/
}

From source file:Main.java

public final static int size(Collection c) {
    return c == null ? 0 : c.size();
}

From source file:Main.java

public static boolean isEmpty(Collection<?> c) {
    if (null == c || c.size() == 0) {
        return true;
    }//from w  w w .j a  v a 2  s  .c  o  m
    return false;
}

From source file:Main.java

public static <T> boolean isSubsetOf(Collection<T> a, Collection<T> b) {
    return (a.size() <= b.size()) && (b.containsAll(a));
}

From source file:Main.java

public static int size(Collection<?> c) {
    return (c == null) ? 0 : c.size();
}

From source file:Main.java

public static boolean isEmpty(Collection col) {
    if (col == null || col.size() == 0) {
        return true;
    } else {/*from  w  ww. j a  va  2  s. c  o  m*/
        return false;
    }
}

From source file:Main.java

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

From source file:Main.java

public static <E> boolean isEmpty(Collection<E> c) {
    return c == null || c.size() == 0;

}