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No ! we cannot override the static methods. Since static method belongs to class level not object level. class StaticExe1 { public static void run() { System.out.println("run of StaticExe1"); } public  void fly() { System.out.println("fly of non-static Exe1"); } } class StaticExe2 extends StaticExe1 { public static void run() { System.out.println("run of StaticExe2"); } public  void fly() { System.out.println("fly of non-static Exe2"); } } class StaticExe3 extends StaticExe2 { public static void run() { System.out.println("run of StaticExe3"); } public  void fly() { System.out.println("fly of non-static Exe3"); } } public class StaticMethod { public static void main(String[] args) { StaticExe2 ex = new StaticExe3 (); ex.run(); ex.fly(); } }

Sorting a Map by value in Java: import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.Set; public class SortMapByValue { public static void main(String[] args) { Map<String, Integer> map = new HashMap<String, Integer>(); map.put("z", 2); map.put("q", 0); map.put("p", 5); map.put("s", 8); map.put("o", 0); map.put("r", 9); map.put("v", 8); System.out.println(map); Set<Entry<String, Integer>> entrySet = map.entrySet(); List<Entry<String, Integer>> lists = new ArrayList<Entry<String, Integer>>(entrySet); Collections.sort(lists, new Comparator<Entry<String, Integer>>() { @Override public int compare(Entry<String, Integer> o1, Entry<String, Integer> o...

import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; class SortBySalary implements Comparator<Human> { @Override public int compare(Human o1, Human o2) { if (o1.salary > o2.salary) return 1; if (o1.salary < o2.salary) return -1; return 0; } } class Human { String name; int age; double salary; public Human(String n, int a, double s) { this.name = n; this.age = a; this.salary = s; } public Human() { } public String toString() { return this.name + " " + this.age + " " + this.salary; } } public class ComparatorExe { public static void main(String[] args) { List<Human> l = new ArrayList(); Human h1 = new Human("ritesh", 12, 6000); Human h2 = new Human("raju", 18, 5000); Human h3 = new Human("ishaan", 10, 7000); Human h4 = new Human("yuyu", 15, 333); Human h5 = new Hu...

Compare multiple fields using Comparator: import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.List; class SortByAnimalByName implements Comparator<Animal> { @Override public int compare(Animal o1, Animal o2) { return o1.name.compareTo(o2.name); } } class SortByAnimalByColor implements Comparator<Animal> { @Override public int compare(Animal o1, Animal o2) { return o1.color.compareTo(o2.color); } } class SortByAnimalByWeight implements Comparator<Animal> { @Override public int compare(Animal o1, Animal o2) { if (o1.weight > o2.weight) { return 1; } if (o1.weight < o2.weight) { return -1; } return 0; } } class SortByAllAnimal implements Comparator<Animal> { List<Comparator<Animal>> com; SortByAllAnimal(Comparator<Animal>... all) { this.com = Arrays.asList(all); } @Override public...

class SampleExec1  { void run() { System.out.println("SampleExec1 run"); } } class SampleExec2 extends SampleExec1 { void run() { System.out.println("SampleExec2 run"); } } public class SampleExecution { public static void main(String[] args) { SampleExec2 ex = new SampleExec1(); ex.run(); } } Output : compile time error at line 15. Type mismatch: cannot convert from SampleExec1 to SampleExec2

public class MaxProfit {   public static void main(final String[] args) {     int a[] = { 4, 1, 10, 2, 3, 5, 6, 25, 48, 8, 26 };     int max = a[a.length - 1];     int min = a[a.length - 1];     int indexOfMax = a.length - 1;     int indexOfMin = a.length - 1;     int dif = -1;     for (int i = a.length - 2; i >= 0; i--) {       if (max < a[i]) {         max = a[i];         indexOfMax = i;       }       if (max > a[i]) {         min = a[i];         indexOfMin = i;       }       if ((indexOfMax > indexOfMin)) {         if (dif < (max - min)) {  ...

public class WordCountByMapAlgoritham { public static void main(String[] args) { String s = "this is java code. this java code is highly recommended for java developer !!"; String a[] = s.split(" "); Map<String, Integer> map = new HashMap<String, Integer>(); for (String word : a) { if (map.get(word) != null) { map.put(word, map.get(word) + 1); } else map.put(word, 1); } System.out.println(map); } } Output:  {!!=1, java=3, code=1, code.=1, this=2, for=1, is=2, developer=1, highly=1, recommended=1}

Write a program to check prime number. public class PrimeNumberAlgorithm { public static void main(String[] args) { isPrimeNumber(11); } private static void isPrimeNumber(int n) { boolean flag = true; int m = n / 2; for (int i = 2; i <= m; i++) { if (n % i == 0) { flag = false; break; } } System.out.println(flag == true ? "Prime number !!" : "Not prime number !!"); } }

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1. Ionidea Hiring for HR Executive | Direct Walkin Experience : 0-1 Yrs Qualification: Only MBA Candidates Essential Skills: Very good attitude with enthusiasm and willingness to learn and contribute more. Excellent communication and interpersonal skills. Should have the intelligence and maturity to carry out varied tasks and responsibilities. Strong Time Management and Priority Management skills. Date: 6th April 2018 Timing : 11:00 AM - 1:00 PM Venue: Ionidea Interactive Pvt Ltd 38-40 EPIP Zone , Whitefield - 66 Google Map: https://goo.gl/maps/UduSMHYA4H52 ========================================== 2. Pole To Win Hiring for Software Testing, Game Testing, Customer Support | Direct Walkin Exp: Freshers / Experienced Skills: Excellent verbal and written communication skill Be good in logical, analytical and reasoning skill Possess strong gaming skills Well versed in Manual Testing concepts, Gaming Platforms and Basic Computers. Date: 6th April to 30...

1. Ionidea Hiring for HR Executive | Direct Walkin Experience : 0-1 Yrs Qualification: Only MBA Candidates Essential Skills: Very good attitude with enthusiasm and willingness to learn and contribute more. Excellent communication and interpersonal skills. Should have the intelligence and maturity to carry out varied tasks and responsibilities. Strong Time Management and Priority Management skills. Date: 5th, 6th April 2018 Timing : 11:00 AM - 1:00 PM Venue: Ionidea Interactive Pvt Ltd 38-40 EPIP Zone , Whitefield - 66 Google Map: https://goo.gl/maps/UduSMHYA4H52 ========================================== 2. Pole To Win Hiring for Software Testing, Game Testing, Customer Support | Direct Walkin Exp: Freshers / Experienced Skills: Excellent verbal and written communication skill Be good in logical, analytical and reasoning skill Possess strong gaming skills Well versed in Manual Testing concepts, Gaming Platforms and Basic Computers. Date: 5th April ...

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