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Concatenate String array into single string

Concatenate String array into single stringpackage r4r.co.in;import java.util.stream.Collectors;import java.util.stream.Stream;public class ConcatenateStringArrayInSingleString {public static void mai

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Find Customer staring with +91 mobile number

Find Customer staring with +91 mobile numberpackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.stream.Collectors;public class FindCustomerStartingWithMobileNumberExamp

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Child and Parent overridden methods Throws checked exception

package r4r.co.in;import java.io.FileNotFoundException;public class A {public static void main(String[] args) throws Exception {// Child and Parent overridden methods Throws checked exception (like//

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Child and Parent overridden methods Throws RuntimeException

package r4r.co.in;public class A {public static void main(String[] args) {//Child and Parent overridden methods Throws RuntimeException (like ArrayIndexOutOfBoundsException)AP ap = new B();ap.display(

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Java Class subclass interview coding questions

package r4r.co.in;public class A {public static void main(String[] args) {// Java Class subclass interview coding questions //child class override parent method interview questionsAP ap = new B()

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Printing the Number of Employees in Each Department using Java

Printing the Number of Employees in Each Department using Javapackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class Pr

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Printing Average Age of Male and Female Employees using Java

Printing Average Age of Male and Female Employees using Javapackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class Prin

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Finding Maximum Age of Employee using Java

Finding Maximum Age of Employee using Javapackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class FindingMaximumAgeOfEmp

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Printing Employee Details by Age Criteria using Java

Printing Employee Details by Age Criteria using Javapackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class PrintingEmpl

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Printing Names of All Departments from Employee Class using Java

Printing Names of All Departments from Employee Class using Javapackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class

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Finding the Count of Male and Female Employees

package r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class CountMaleAndFemale {public static void main(String[] args) {//Fi

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Grouping Employees by City and Age

Grouping Employees by City and Agepackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class EmployeeGroupByCityAndAge {pub

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Employee Highest salary in each department using Java

Employee Highest salary in each department using Javapackage r4r.co.in;import java.util.ArrayList;import java.util.Comparator;import java.util.LinkedHashMap;import java.util.List;import java.util.Map;

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Sort highest salary in each department

Sort highest salary in each departmentpackage r4r.co.in;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.stream.Collectors;public class GroupByDeparmentSortedBySa

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5 Family Bonding Activities You Can Do Offline This -Ber Months

Did you know? Mixed weather characterizes the -ber months, especially here in the Philippines! During the start of November and throughout December, the air turns colder, and cuddle weather, safe to s

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Find first repeated character in a string

package r4r.co.in;import java.util.LinkedHashMap;import java.util.Map;import java.util.Map.Entry;import java.util.Objects;import java.util.function.Function;import java.util.stream.Collectors;import j

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Travel Tips for First-Time LRT Commuters

Riding around a new city is always an adventure. It must be addressed, especially when riding an unfamiliar public means of travel like the Light Rail Transit. Knowing the LRT system will guide you in

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sum ,min ,max etc example using reduce method using Java 8 Stream API

package r4r.co.in;import java.util.stream.Stream;public class Java8StreamReduceMethodExample {public static void main(String[] args) {// sum ,min ,max etc example using reduce method using Java 8 Stre

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Java 8 Stream String Null Or Empty Filter

package r4r.co.in;import java.util.Arrays;import java.util.Objects;import java.util.function.Predicate;import java.util.stream.Stream;public class NnonNullExamples {public static void main(String[] ar

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26 Java 8 Programs using Lambda Expression and Stream

26 Java 8 Programs using Lambda Expression and Stream Write a program to append char in char ex-input- {A, B, C} output->[A_X, B_Y, C_Z] Write a Java 8

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