If two arraylists are not equal and we want to findwhat additional elements are in the first list compared to the second list, use theremoveAll()method. It removes all elements of the second list from the first list and leaves only additional elements in the first list. ArrayList<String>li...
This post will discuss how to compare two objects in Java. You should never use the==operator for comparing two objects, since the==operator performs a reference comparison and it simply checks if the two objects refer to the same instance or not. The recommended option to compare two object...
In this tutorial, first, we will compare two array lists using a comparison method in Java. We also apply the same method on Java strings before applying it on array lists. Finally, we demonstrate, how you can sort an unordered array list before comparis
In this simple implementation, we use its equals method to compare in memory the bytes of the whole file in one pass. 6. Using Apache Commons I/O The methods IOUtils::contentEquals and IOUtils::contentEqualsIgnoreEOL compare the contents of two files to determine equality. The difference betw...
Another approach is to use theequals()method in JavaDateclass. It compares two dates and returnstrueif they are equal. Example Codes: // java 1.8packagesimpletesting;importjava.text.ParseException;importjava.text.SimpleDateFormat;importjava.util.Date;publicclassSimpleTesting{publicstaticvoidmain(String...
Home Question How Best to Compare Two Collections in Java and Act on Them? I think the easiest way to do that is by using apache collections api - CollectionUtils.subtract(list1,list2) as long the lists are of the same type. Examples related to java • Under what circumstances can ...
Learn to compare two LocalDate instances to find out which date represents an older date. LocalDate class is part of java.time package added in Java 8.
How to compare two dates in String format in Java - The java.text.SimpleDateFormat class is used to format and parse a string to date and date to string.One of the constructors of this class accepts a String value representing the desired date format and
compare two arrays to find out if they contain any element in common. Compare two bitmaps Compare two char arrays Compare two int arrays Compare two List(T) via three or multiple properties using LINQ in C# Compare two PDF files in C# windows application Compare two string Arrays compare two...
While developing an application there are certain scenarios where you may need to compare two dates which are in different format. Here I am sharing a code which compares two provided dates which can be in any format. As you can see in the below example