- import java.util.ArrayList;import java.util.Collections;
- public class Main {
- public static void main(String[] args) {
- ArrayList arrayList = new ArrayList();
- arrayList.add("A");
- arrayList.add("B");
- arrayList.add("C");
- arrayList.add("D");
- arrayList.add("E");
- System.out.println( "Reverse preorder: " + arrayList);
- Collections.reverse(arrayList);
- System.out.println( "Sort after reverse: " + arrayList);
- }
- }
reverse the array
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