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- /**
- * Arraylist dengan RetainAll
- * yang berfungsi menahan data yang
- * yang diinginkan
- *
- * @author Thomasdwi.a
- * @version 20201025
- */
- import java.util.ArrayList;
- import java.util.Iterator;
- public class ArrayListRetain {
- public static void main(String [] args){
- //membuat arraylist
- ArrayList<String> al =new ArrayList<String>();
- al.add("Rosa");
- al.add("Wulan");
- al.add("Kosim");
- al.add("badang");
- ArrayList<String> al2 =new ArrayList<String>();
- al2.add("Rosa");
- al2.add("Candara");
- al.retainAll(al2);
- Iterator itr = al.iterator();
- while ((itr.hasNext())){
- System.out.println(itr.next());
- }
- }
- }
- /** Output :
- *Rosa
- */
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