Java Collection Empty isEmpty(Collection v)

Description

See Javadoc above

License

Open Source License

Declaration

public static boolean isEmpty(Collection v) 

Method Source Code

//package com.java2s;
import java.util.Collection;
import java.util.Map;

public class Main {
    /**/*from   ww  w. jav a2s .com*/
    * Series of utilities to ensure that parameters not null, empty, 
    * less than 1 or == 0 
    *  
    * @param String, Object, Collection, Map 
    * @return boolean      
    * @throws n/a
    */

    public static boolean isEmpty(String s) {

        boolean retVal = true;

        if (s == null || s.trim().equals("") || s.length() < 1) {
            retVal = true;
        } else {
            retVal = false;
        }

        return retVal;

    }

    /**
     * See Javadoc above
     */

    public static boolean isEmpty(Object obj) {
        boolean retVal = true;

        if (obj == null) {
            retVal = true;
        } else {
            retVal = false;
        }

        return retVal;

    }

    /**
     * See Javadoc above
     */
    public static boolean isEmpty(Collection v) {
        boolean retVal = true;

        if (v == null || v.isEmpty() || v.size() == 0) {
            retVal = true;
        } else {
            retVal = false;
        }

        return retVal;

    }

    /**
     * See Javadoc above
     */

    public static boolean isEmpty(Map m) {
        boolean retVal = true;

        if (m == null || m.isEmpty() || m.size() == 0) {
            retVal = true;
        } else {
            retVal = false;
        }

        return retVal;

    }
}

Related

1. isEmpty(Collection collection)
2. isEmpty(Collection collection)
3. isEmpty(Collection collection)
4. isEmpty(Collection items)
5. isEmpty(Collection list)
6. isEmpty(Collection col)
7. isEmpty(Collection c)
8. isEmpty(Collection c)
9. isEmpty(Collection c)