What is the fragment life cycle? How to access fragment view by activity
Senior Android Developer Interview Questions
1,907 senior android developer interview questions shared by candidates
1. Tell us about your past roles and key responsibilities. 2. What’s your current tech stack? 3. How do you collaborate effectively with your team? 4. If you could set the team and project structure, what rules would you establish?
Develop the app withing 15 days due to client requirements
Q: Algorithm questions for the initial phone interview
- Do a 15 min presentation about yourself explaining the highs and lows of your career. - They give you a piece of paper with some code and ask you: What does the code do ? improve the code ... - Basic android questions like what is an intent ? what is a responsive application ? Qual is an Activity ? What is a Fragment ? what is the diference between Activity and Fragment ? What is an Android Service ?
Staircase dynamic programming problem .
I am a Windows platform Android developer, is that a problem? No Steve not a problem.
We have a food delivery application that connects between a customer, a restaurant. When a user places an order, he can do online payment or cash on delivery. We have a payment module does contain all the payment related stuff, so the following code is the little snippet of the payment logic and there are errors, it can be logical, memory related, compiler issues... etc. here's the code: import java.util.Arrays; import java.util.Comparator; import java.util.Treeset; class PaymentException extends Exception { } class GatewayException extends PaymentException { } interface PaymentOptions { public void pay(E s) throws PaymentException; } abstract interface VirtualCard extends PaymentOptions { } abstract class PaymentType { } class Card extends PaymentType { } class SmartCard { } class HSBCPay implements VirtualCard { public void pay(SmartCard s) { } } abstract class Visa implements PaymentOptions { public abstract void pay(ElectronicCard s) { } } abstract class ApplePay implements PaymentOption { } class Wallet implements PaymentOption { public void pay(ElectronicCard i) throws Exception { } } class Mada implements PaymentOption { public void pay(PaymentType i) { } } class MasterCard implements PaymentOption { private void pay(SmartCard s) throws PaymentException { } public void pay(Card s) throws PaymentException { } } class ElectronicCard extends Card { public void pay(Card s) throws PaymentException { } public static void main(String[] args) { new ElectronicCard().go(); } void go(){ go2(new Card(), new ElectronicCard()); go2(( ) new Card(), new ElectronicCard()); } void go2(Card t1, ElectronicCard r1) { ElectronicCard r2 = (ElectronicCard) t1; Card t2 = (Card) r1; } } public class Test { public static synchronized void main(String[] args) throws InterruptedException { Thread thread = new Thread(); thread.start(); System.out.println("X"); thread.wait(1000); System.out.println("X"); } } class Innertest ( public static void main(String[] args) { String[] sa = ["Applepay", "Master", "Visa", "Wallet"]; Sorter s = new Sorter(); for(s2 : sa) System.out.println(s2 + " "); Arrays.sort(sa, s); System.out.println(); for(s2 : sa) System.out.println(s2 + " "); } } class Sorter implements Comparator { public int compare(String a, String b) { return b.compareTo(a); } } class TestDataStructure { public static void main(String[] args){ TreeSet i = new TreeSet(); TreeSet d = new TreeSet(); d.add(new PaymentAmount(1)); d.add(new PaymentAmount(2)); d.add(new PaymentAmount(1)); i.add(1); i.add(2); i.add(1); System.out.println(d.size() + " " + i.size()); } static class PaymentAmount { int size; PaymentAmount(int s) { size = s; } } }
could not remember the aptitude questions. you have to guess as well as its very hard to complete all of them. coding test: one of them was to calculate number of ways you can walk up a flight of stairs for 2nd test you will be determining whether a car can get around a route.
Okhttp Caching
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