Replace all occurrences of specified element of Java ArrayList Example

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import java.util.ArrayList; import java.util.Collections; public class ReplaceAllArrayListExample { public static void main(String[] args) { //create an ArrayList object ArrayList arrayList = new ArrayList(); //Add elements to Arraylist arrayList.add("A"); arrayList.add("B"); arrayList.add("A"); arrayList.add("C"); arrayList.add("D"); System.out.println("ArrayList Contains : " + arrayList); Collections.replaceAll(arrayList, "A","Replace All"); System.out.println("After Replace All, ArrayList Contains : " + arrayList); } } /* Output would be ArrayList Contains : [A, B, A, C, D] After Replace All, ArrayList Contains : [Replace All, B, Replace All, C, D] */