How to compare two lists equal in java How to compare two lists either equal or not by using list equal method in java. If two lists are equal then it will true else it will return false. List following the index order and comparing the data. String type List following Case Sensitive. So be […]
Tag: list
Sorting List by using Comparator Interface
Sorting List by using Comparator Interface In this article, I am going to explain the Sorting List by using Comparator Interface. Objects Type List can be sorted by using a Comparator interface. By using comparator we can sort the list of objects by a single field or multiple fields either in ascending order or descending […]
How to Sort a List By Using Comparable Interface
How to Sort a List By Using Comparable Interface In this article, going to explain How to Sort a List By Using Comparable Interface. Wrapper Class type List can be sorted by using the Collection.sort() method but the List type is Object then we have to use comparable interface to sort. Example Create VO Class […]
How to sort a List in java
How to sort a List in java In this article, explaining how to sort a list in java. We can sort list which contains Primitive data types or Wrapper Class Types by using Collections.sort(list) or list.stream().forEach(); We can’t sort list which contains object data types so that we have to use a comparator or comparable […]
Comparator List Sorting
Comparator List Sorting In this example showing how to sort objects in the List by using a comparator. Primitive Type List, Wrapper Classes Type List can be sorted by using the Collection.sort(), but Object type List can’t be sorted. To achieve this we can use either Comparator and Comparable. Comparator A Comparator interface is […]
How to sort primitive data in the list
How to sort primitive data in the list There is a list having primitive data, then how to sort the data in the list. List – Integer Data Type ListIntegerSorting.java package com.narayanatutorial.primitive.sorting; import java.util.ArrayList; import java.util.Collections; import java.util.List; public class ListIntegerSorting { public static void main(String args[]) { List<Integer> list = new ArrayList<Integer>(); list.add(123); […]
Collections
Collections It is an utility class present in java.util package. It defines several utility methods for collection implemented class object. Sorting a list public static void sort(List l), to sort the elements of List, according to natural sorting order. In this case compulsory Objects should be Homogeneous & comparable otherwise we will get ClassCastException. The […]
