Example usage for java.util List isEmpty

Introduction

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

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:Main.java

public static boolean isEmpty(List<?> list) {
    if (list == null || list.isEmpty()) {
        return true;
    }/*from   w w  w .  j  av  a2 s . c  om*/
    return false;
}

From source file:Main.java

public static boolean isEmpty(List list) {
    return list == null || list.isEmpty();
}

From source file:Main.java

public static <K> K getGenericList(List<K> result) {
    if (result == null || result.isEmpty()) {
        return null;
    } else {/*  w  w  w  .  ja  v a 2 s  . c om*/
        return result.stream().findAny().get();
    }
}

From source file:Main.java

public static <T> boolean isEmptyList(final List<T> list) {
    return list == null || list.isEmpty();
}

From source file:Main.java

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

From source file:Main.java

/**
 * //w  w w .j a  va2 s .com
 * @param list
 * @return
 */
public static boolean isListBlank(List<?> list) {
    return (list == null) || (list.isEmpty());
}

From source file:Main.java

public static <T> T last(List<T> list) {
    return list != null && !list.isEmpty() ? list.get(list.size() - 1) : null;
}

From source file:Main.java

/**
 * Convert to Set - this operation removes the duplicates in original list.
 * @param list//  www  .j  a v a  2s .c  o  m
 * @return
 */
public static <T> Set<T> converToSet(List<T> list) {
    if (list == null || list.isEmpty()) {
        return Collections.emptySet();
    }
    return new HashSet<T>(list);
}

From source file:Main.java

public static boolean isListNotEmpty(List list) {
    return list != null && !list.isEmpty();
}

From source file:Main.java

public static Double listMin(List<Double> list) {
    if (list == null || list.isEmpty()) {
        return null;
    }/*  ww w  .j a v a  2  s .  c  o m*/

    return Collections.min(list);
}