package staticTest; import java.io.Serializable; import java.text.StringCharacterIterator; import java.util.*; import java.io.*; public final class UserDetails implements Serializable { /** * This constructor requires all fields * * @param aFirstName * contains only letters, spaces, and apostroph...
Use theforLoop to Compare Arrays in Java Example code: publicclasscompareArrays{publicstaticbooleancompare(int[]array1,int[]array2){booleanflag=true;if(array1!=null&&array2!=null){if(array1.length!=array2.length)flag=false;elsefor(inti=0;i<array2.length;i++){if(array2[i]!=array1[i...
Learn tocompare two ArrayListin Java to find if they contain equal elements. If both lists are unequal, we will find thedifference between the lists. We will also learn to find common as well as different items in each list. Note that the difference between two lists is equal to a third...
public class Main { public static void main(String[] args) { Double d1 = 5.643d; Double d2 = 7.675d; System.out.println(Double.compare(d1, d2)); } } Output: -1 Use d2.CompareTo(d1) to Compare Doubles in Java In this method, you compare d2 with d1. The value will be...
In Java, all primitive data types (such as int, float, double, and byte) have individual wrapper classes. Integer is a wrapper class of int, and it provides several methods and variables you can use in your code to work with integer variables. One of the methods is the compareTo() ...
classPerson{Stringname;// constructor, getters and setters omitted for brevity}List<Person>people=Arrays.asList(newPerson('Charlie'),newPerson('Alice'),newPerson('Bob'));Collections.sort(people,newComparator<Person>(){@Overridepublicintcompare(Personp1,Personp2){returnp1.getName().compareTo(p...
We use the DateTime API introduced in Java 8 like LocalDate, LocalTime, LocalDateTime, ZonedDateTime, as well as older classes like Date, and Calendar to demonstrate how to compare dates. Compare dates in Java using LocalDate importjava.time.LocalDate;publicclassCompareLocalDateExample{publicstati...
In this Java tutorial, you will learn How to Find Maximum Occurrence of Words from given Text File? Here is a logic for getting top element: Create a
Learndifferent ways to compare two hashmapsin Java by keys, values and key-value pairs. Also, learn to compare Maps while allowing or restricting duplicate values. 1. Compare Maps for Same Keys and Values 1.1. UsingMap.equals() By default,HashMap.equals()method compares two hashmaps by ke...
Before overriding equals() method in Java, first let's see when two objects are considered to be equal. Two objects are considered to be equal when they are identical (contain the same data) or in other words they are in the same state. In order to compare two objects for equality, ...