Single Function in Java to Check NULL value or object
Sat Jul 11 2020 07:31:27 GMT+0000 (Coordinated Universal Time)
Saved by
@WaqarAhmad
#java
/**
* This method returns true if the collection is null or is empty.
*
* @param collection
* @return true | false
*/
public static boolean isEmpty(Collection<?> collection) {
if (collection == null || collection.isEmpty()) {
return true;
}
return false;
}
/**
* This method returns true of the map is null or is empty.
*
* @param map
* @return true | false
*/
public static boolean isEmpty(Map<?, ?> map) {
if (map == null || map.isEmpty()) {
return true;
}
return false;
}
/**
* This method returns true if the object is null.
*
* @param object
* @return true | false
*/
public static boolean isEmpty(Object object) {
if (object == null) {
return true;
}
return false;
}
/**
* This method returns true if the input array is null or its length is zero.
*
* @param array
* @return true | false
*/
public static boolean isEmpty(Object[] array) {
if (array == null || array.length == 0) {
return true;
}
return false;
}
/**
* This method returns true if the input string is null or its length is zero.
*
* @param string
* @return true | false
*/
public static boolean isEmpty(String string) {
if (string == null || string.trim().length() == 0) {
return true;
}
return false;
}
content_copyCOPY
I Created this in my Utility Class as static and used it in my whole application to check NULL.
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