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 boolean isEmpty(Collection<?> c) {
    if (null == c || c.isEmpty()) {
        return true;
    }/*from   w  w w  .  ja v  a  2  s. c  om*/
    return false;
}

From source file:Main.java

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

From source file:Main.java

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

From source file:Main.java

private static boolean isEmpty(Collection<?> coll) {
    return (coll == null || coll.isEmpty());
}

From source file:Main.java

public static <T> List<T> toImmutableList(final Collection<T> c) {
    if (c.isEmpty()) {
        return Collections.emptyList();
    } else {/*from   w  w w . j ava  2 s  .  com*/
        return Collections.unmodifiableList(new ArrayList<T>(c));
    }
}

From source file:Main.java

public static <T> Set<T> copyToLinkedHashSet(Collection<? extends T> src) {
    if (src.isEmpty()) {
        return Collections.emptySet();
    }//  www  .j a va  2s .com

    return Collections.unmodifiableSet(new LinkedHashSet<T>(src));
}

From source file:Main.java

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

From source file:Main.java

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

From source file:Main.java

public static boolean isEmpty(Collection coll) {
    return (coll == null || coll.isEmpty());
}

From source file:Main.java

public static boolean isNotEmpty(Collection input) {
    return input != null && !input.isEmpty();
}