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());java list sort descending
import java.util.*;
public class Details {
public static void main(String args[]){
ArrayList<String> arraylist = new ArrayList<String>();
arraylist.add("AA");
arraylist.add("ZZ");
arraylist.add("CC");
arraylist.add("FF");
/*Unsorted List: ArrayList content before sorting*/
System.out.println("Before Sorting:");
for(String str: arraylist){
System.out.println(str);
}
/* Sorting in decreasing order*/
Collections.sort(arraylist, Collections.reverseOrder());
/* Sorted List in reverse order*/
System.out.println("ArrayList in descending order:");
for(String str: arraylist){
System.out.println(str);
}
}
}Copyright © 2021 Codeinu
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