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How do I remove multiple elements from a list in Java?
The List provides removeAll() method to remove all elements of a list that are part of the collection provided.
boolean removeAll(Collection<?> c)
Parameters
c − Collection containing elements to be removed from this list.
Returns
True if this list changed as a result of the call
Throws
UnsupportedOperationException − If the removeAll operation is not supported by this list.
ClassCastException − If the class of an element of this list is incompatible with the specified collection (optional).
NullPointerException − If this list contains a null element and the specified collection does not permit null elements (optional), or if the specified collection is null.
Example
Following is the example showing the usage of removeAll() method −
package com.tutorialspoint;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class CollectionsDemo {
public static void main(String[] args) {
List<Integer> list = new ArrayList<>(Arrays.asList(0,1,2,3,4,5,6,7,8,9));
List<Integer> list1 = new ArrayList<>(Arrays.asList(6,7,8,9));
System.out.println("List: " + list);
list.removeAll(list1);
System.out.println("Updated List: " + list);
}
}Output
This will produce the following result −
List: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] Updated List: [0, 1, 2, 3, 4, 5]
Updated on: 09-May-2022
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