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

From source file:Main.java

public static <T> boolean collectionIsNotNullOrEmpty(Collection<T> colllection) {
    return colllection != null && !colllection.isEmpty();
}

From source file:Main.java

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

From source file:Main.java

public static <T> boolean isEmpty(Collection<T> col) {
    if (col == null || col.isEmpty()) {
        return true;
    }/*from   w ww . ja va 2 s  .  c o  m*/

    return false;
}

From source file:Main.java

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

From source file:Main.java

/**
 * @author DUYPT/*from   w  ww.  j a  v  a 2s. co  m*/
 * @param data
 * @return
 */
public static boolean isNullOrEmpty(Collection<Object> data) {
    if (data != null && !data.isEmpty()) {
        return true;
    }
    return false;
}

From source file:Main.java

/**
 * @return the first element of given coll, if collection is non-null and non-empty. Otherwise null. 
 *///from  w w  w .j  a  v  a 2  s . com
public static <T> T getFirstElementOrNull(Collection<T> coll) {
    if (coll == null || coll.isEmpty())
        return null;
    return coll.iterator().next();
}

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 <E extends Object> boolean isEmpty(Collection<E> collection) {

    return null == collection || collection.isEmpty();
}

From source file:Main.java

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