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What are some frequently asked Node.js interview questions for the Junior JavaScript developer?

Asked by Amit 06/12/2018 Last Modified 05/01/2019

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Learn Java +3 Java Script Training Java Programming Core Java

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class HappyGarbage01 { public static void main(String args[]) { HappyGarbage01 h = new HappyGarbage01(); h.methodA(); /* Line 6 */ } Object methodA() { Object obj1 = new Object(); Object [] obj2 = new Object[1]; obj2[0] = obj1; obj1 = null; return obj2[0]; } } Where will be the most chance of the garbage collector being invoked? A. After line 9 B. After line 10 C. After line 11 D. Garbage collector never invoked in methodA()

Hello Shrikant who told you that you can explicity call garbage collector. You cann't call gc explicity even when you use System.gc() it is not guranteed that gc will be invoked it is all up to JVM when...

Srikanth

0 0

Write a programme to replace the string without using replace command? This is my string. ..... s is replaced by th output is Thith ith my thtring

/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package logic; ...

Mithun

0 0

Which one of these lists contains only Java programming language keywords? A. class, if, void, long, Int, continue B. goto, instanceof, native, finally, default, throws C. try, virtual, throw, final, volatile, transient D. strictfp, constant, super, implements, do E. byte, break, assert, switch, include boolean -> true

D contains only java keywords but const is the keyword instead of constant

Srikanth

1 0

Is there any difference between Serializalble and Externalizable interface?

1. In case of Serializable, default serialization process is used. while in case of Externalizable custom Serialization process is used which is implemented by application. 2. JVM gives call back...

Vathsala

0 0

What is a constructor in Java?

Constructor is a special method to initialise Java objects. Usually initialisation logic is kept inside the constructor. Java compiler by default creates a default no arg constructor if no constructor is defined already.

Rishu

0 0

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Session Tracking In Java Servlets

Session Tracking: HTTP is a stateless protocol. Each request is independent of the previous one. However, in some applications, it is necessary to save state information so that information can be collected...

D Subba Rao

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Differences Between HashMap vs HashSet In Java.

HashSet HashMap HashSet implements Set interface. HashMap implements Map interface. HashSet stores the data as objects. HashMap stores the data as key-value pairs. HashSet...

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public class Priority { @Test (priority=1)public void login() {System.out.println("login");} @Testpublic void email1() {System.out.println("email1");} @Test (priority=-2)public void email2() {System.out.println("email2");} //I...

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