Click here to watch in Youtube :
https://www.youtube.com/watch?v=DGe2SigO0B8&list=UUhwKlOVR041tngjerWxVccw
CollectionsExample.java
Output
https://www.youtube.com/watch?v=DGe2SigO0B8&list=UUhwKlOVR041tngjerWxVccw
CollectionsExample.java
import java.util.ArrayList; import java.util.Collections; /* * Example of * * replaceAll(List<T> list,T oldVal,T newVal) method * * Parameters: * * list - the list in which replacement is to occur. * oldVal - the old value to be replaced. * newVal - the new value with which oldVal is to be replaced. * * Returns: * * true if old values are replaced with new values. * */ public class CollectionsExample { public static void main(String[] args) { ArrayList<Integer> arrayList = new ArrayList<Integer>(); arrayList.add(2000); arrayList.add(3000); arrayList.add(4000); arrayList.add(1000); arrayList.add(2000); arrayList.add(2000); System.out.println("arrayList : " + arrayList + "\n"); /* * Replaces all occurrences of one specified value in a list with * another. */ boolean isReplaced = Collections.replaceAll(arrayList, 2000, 10); System.out.println("isReplaced : " + isReplaced + "\n"); System.out.println("After Replaced , arrayList : " + arrayList); } }
arrayList : [2000, 3000, 4000, 1000, 2000, 2000] isReplaced : true After Replaced , arrayList : [10, 3000, 4000, 1000, 10, 10]
https://sites.google.com/site/javaee4321/java-collections/CollectionsDemoReplaceAll.zip?attredirects=0&d=1
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