• Given a list of integers, separate odd and even numbers

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.List;import java.util.Map;import java.util.stream.Collectors;import java.util.stream.Stream;public class SeparateOddAndEvenNumbers {public static void main(String[]

  • Reports and Indices (MCQs)

    Categories: Others ||

    Q.1. Recently, which institution released the ‘Aging well in Asia: Asian Development Policy Report’? (A) World Bank (B) Asian Development Bank (ADB) (C) European Investment Bank (EIB)

  • Find Last duplicate character of given string using Java 8

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.Map;import java.util.function.Function;import java.util.stream.Collectors;public class Test123 {public static void main(String[] args) {// Find Last duplicate charac

  • News Locations (MCQs)

    Categories: Others ||

    Q.1. Utkela Airport has been inaugurated in which state/UT? [A] Odisha [B] West Bengal [C] Assam [D] Arunachal Pradesh   Ans. [A] Odisha   Q.2. Umiam lake, which was seen in the news

  • Find duplicate elements with its count using Java 8

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.Arrays;import java.util.Collections;import java.util.List;import java.util.Map;import java.util.function.Function;import java.util.stream.Collectors;public class Dup

  • How to check if list is empty in Java 8 using Optional

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.Arrays;import java.util.List;import java.util.Objects;import java.util.Optional;public class CheckListIsEmptyOrNot {public static void main(String[] args) {//How to

  • Write a Program to find the Maximum element in an array

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.Arrays;import java.util.Comparator;public class MaximumOfGivenArray {public static void main(String[] args) {//Write a Program to find the Maximum element in an arra

  • count of each character in a String using Java 8

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.HashMap;import java.util.LinkedHashMap;import java.util.Map;import java.util.function.Function;import java.util.stream.Collectors;import java.util.stream.Stream;publ

  • How to print keys & values of a Map using Java 8

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.HashMap;import java.util.Map;import java.util.stream.Stream;public class MapExamplesJava8 {public static void main(String[] args) {// How to print keys & values

  • How to iterate and modify values in a Map using Java 8

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.HashMap;import java.util.Map;public class IterateAndmodifyValuesInMapUsingJava8 {public static void main(String[] args) {// How to iterate and modify values in a Map

  • How to find next, previous, tomorrow ,yesterday date using Java 8

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.time.LocalDate;public class FindTodayTommrowYesterdayUsingJava8 {public static void main(String[] args) {// TODO Auto-generated method stub//How to find next/previous(tom

  • How to sort a list of strings by length using Lambda expressions

    Categories: Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.List;import java.util.stream.Collectors;import java.util.stream.Stream;public class ShortByLengthOfString {public static void main(String[] args) {// How to sort a l

  • Write a program to sum an array

    Categories: Java 9 || Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.stream.Collectors;import java.util.stream.Stream;public class SumAnArray {//Write a program to sum an arraypublic static void main(String[] args) {  Integer[] i

  • Write a program to sum an array without using the sum method

    Categories: Java 9 || Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.stream.Stream;public class SumWithoutUsingSumMenthod {public static void main(String[] args) {//Write a program to sum an array without using the sum methodInteger[]

  • Write a program to find the only duplicate count list in the List

    Categories: Java 9 || Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.Collections;import java.util.List;import java.util.Map;import java.util.function.Function;import java.util.stream.Collectors;public class OnlyDuplicateCountList {pub

  • How to increment salary by 2%, 5%, etc. Using java

    Categories: Java 9 || Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.List;import java.util.stream.Collectors;public class IncrementSalary {public static void main(String[] args) {// How to increment salary by 2%, 5% etc using java - P

  • Filter employees by age in Java 8 Lamda steam

    Categories: Java 9 || Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in.emp;import java.util.List;import java.util.stream.Collectors;public class Employees {//Filter employees by age in Java 8 Lamda steam public static void main(String[] args) {List

  • Write a Java 8 program to print the first 10 odd numbers

    Categories: Java 9 || Java 8(JDK1.8) || Java || Java Examples ||

    package r4r.co.in;import java.util.List;import java.util.stream.Collectors;import java.util.stream.Stream;public class First10thOdd {//Write a Java 8 program to print the first 10 odd numbers.public s

  • Business, Economy & Banking (MCQs)

    Categories: Others ||

    Q.1. Which Union Ministry is the top procurer on Government e-Marketplace (GeM) as of 2023? (A) Ministry of Defence (B) Ministry of MSME (C) Ministry of Commerce and Industry (D) Ministry of Housi

  • How do you schedule tasks in a Spring Boot application?

    Categories: Spring Boot ||

    To schedule tasks in a Spring Boot application, you can use the @Scheduled annotation along with @EnableScheduling in your configuration class. Here’s an example:@Configuration@EnableScheduling

  • How do you handle exceptions in a Spring Boot application?

    Categories: Spring Boot ||

    To handle exceptions in a Spring Boot application, you can use the @ControllerAdvice and @ExceptionHandler annotations. Create a class annotated with @ControllerAdvice to handle exceptions globally.@C

  • What are Components in Angular?

    Categories: Angular Inteview Qusetions and Answers for 10 Years with Basics ||

    Components are the most basic UI building block of an Angular app.

  • What are Angular advantages?

    Categories: Angular Inteview Qusetions and Answers for 10 Years with Basics ||

    There are following advantages of angular Relatively simple to build a single page application (SPA)- components .To make flexible and structured application(OOP friendly)It is cross platform and open

  • What is NPM(Node Package Manager)

    Categories: Angular Inteview Qusetions and Answers for 10 Years with Basics ||

    NPM :- Node package manager is an online repository from where we can get thousands of free libraries  which we can use in our project .NPM is a package manager which makes all JavaScript Framewo

  • How to check the angular version ? or Ways to find the angular version.

    Categories: Angular Inteview Qusetions and Answers for 10 Years with Basics ||

    To find angular version open application in browser open developer toolbar .Then navigates to elements .You can see angular version as ng-version =”15.2.10” go to the working directory where your

  • What is the difference between angular and angularjs?

    Categories: Angular Inteview Qusetions and Answers for 10 Years with Basics ||

    There are many differences in angular and angularjs .The main differences between anglurajs and angular are as below AngularJsAngular(2,4,5,6,7,8,9 etc )Language TypeScript TypeScriptAr

  • What is angular

    Categories: Angular Inteview Qusetions and Answers for 10 Years with Basics ||

    Angular is JavaScript binding Framework which binds HTML UI to and JavaScript Model .This helps us to write long and lengthy code . What happens when we write code for HTML and bind a direct mode

  • Decoding the Symbolism of Green in Highway Signage

    Categories: Others ||

    One of the unsung heroes of the road are traffic signs. These quiet sentinels keep watch, providing drivers with important information and guaranteeing a smooth traffic flow. The colors they employ ha

  • fizzbuzz problem java

    Categories: Java 9 || Java || Java Examples ||

    import java.util.*;public class Main {  public static void main(String[] args) {   StringBuffer sb=new StringBuffer();   for(int i=1;i<=100;i++){    if(i%5==0&

  • java toUpperCase() and toLowerCase() example

    Categories: Java 9 || Java 8(JDK1.8) || Java || Java Examples ||

    import java.util.*;public class r4r{    public static void main(String[] args) {      String str="Rajesh Kumar";      System.out.println("Upper Case:-"+str.toUp

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