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Course on Computer Concepts (CCC) MCQs

Q.1. Small networking making up internet and also having small no. of computers within is known as _____? Host Address Sub-domain None of these   Answer: A. Host   Q.2. One how s

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Given a list of integers, separate odd and even numbers

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[]

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Reports and Indices (MCQs)

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)

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Find Last duplicate character of given string using Java 8

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

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News Locations (MCQs)

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

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Find duplicate elements with its count using Java 8

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

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

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

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Write a Program to find the Maximum element in an array

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

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count of each character in a String using Java 8

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

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

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

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

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

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

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

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How to remove all duplicates from an array of integers in Java using Java 8

package r4r.co.in;import java.util.Arrays;import java.util.stream.Stream;public class RemoveAllDuplicateInteger {public static void main(String[] args) {//How to remove all duplicates from an array of

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How to count the number of occurrences of a given word in a list of strings using Java 8

package r4r.co.in;import java.util.Arrays;import java.util.List;public class CountGivenWordInGivenArryOfStringUsingJava8Lamda {public static void main(String[] args) {// How to count the number of occ

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Write a Java program To create a map from a array of strings where the key is the string and the value is its length

package r4r.co.in;import java.util.Map;import java.util.stream.Collectors;import java.util.stream.Stream;public class CreateMapStringAsKeyAndLengthAsValue {public static void main(String[] args) {// W

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How to filter and collect a list of strings that start with a specific letter using Java 8 Stream

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

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

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

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Find the maximum value in a list of integers using Stream & Method Reference

package r4r.co.in;import java.util.Arrays;import java.util.List;import java.util.Optional;import java.util.stream.Stream;public class MaxUsingMethodReferencing {return max;}public static void main(Str

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Drop all while condition not meet dropWhile(),dropWhile(Predicate<T> predicate)

package r4r.co.in;import java.util.List;import java.util.Set;import java.util.stream.Collectors;public class DropWhileExamples {//Drop all while condition not meetpublic static void main(String[] args

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Write a program to sum an array

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

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