how to reverse order of arraylist
ArrayList<Integer> arrlist = new ArrayList<Integer>();
//This is how to reverse arrlist's oringinal order.
Collections.reverse(arrlist);
//This is how to sort in a reverse order
Collections.sort(arrlist, Collections.reverseOrder());reverse number in java
public class ReverseNumber {
public static void main(String[] args) {
int num = 1234, reversed = 0;
while(num != 0) {
int digit = num % 10;
reversed = reversed * 10 + digit;
num = num / 10;
}
System.out.println("Reversed Number: " + reversed);
}}how to reverse a list in java
List<String> stringList = Arrays.asList("A", "B", "C");
Collections.reverse(stringList);
assertThat(stringList).containsExactly("C", "B", "A");Collections reverse on java
//import java.util.Collections;
//create and add items to list
Collectons.reverse(list);Arraylist reverse in java
public static void main(String[] args) {
ArrayList<Integer>list = new ArrayList<>();
for(int i = 1; i < 6; i++){ // bu element index degil.
list.add(i);
}
System.out.println(list); // [1, 2, 3, 4, 5]
for (int i = list.size()-1; i >= 0; i--) {
int each = list.get(i); // unboxing
System.out.print(each + " "); // 5 4 3 2 1
}Copyright © 2021 Codeinu
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