It’s a great design question and asked a lot in java interviews. This post provides all the differences between abstract class and interface. When should we use interface over the abstract class and vice versa? The post also explains how to use abstract class and interface to create a flexi...
Java 8 has been released in March 2014, so it’s one of the hot topics in java interview questions. If you answer this question clearly, it will show that you like to keep yourself up-to-date with the latest technologies. Java 8 has been one of the biggest releases after Java 5 anno...
Looking forward to appear in Java Interview, here are the key 100+ Java Interview Questions with Answers only for you including some of the tricky questions with answers. Table of Contents Sr.No.Question 1 What are new Java8 Features? 2 Difference between GET & POST METHODS? 3 Difference be...
Question - 15 :JavaScript Regular function knowledgeWhat is the difference between `map()` and `forEach()` methods ? `Answer :` The 'map()' method creates a new array with the results of calling provided function on every element in the calling array . Whereas, the forEach() method ...
Well, you really need to know the concept of string pool very deeply to answer this question or similar questions. 8. How does String’ssubstring()Method Works? A string in Java is, like any other programming language, a sequence of characters. This is more like a utility class to work...
The goal of this question is to test a candidate’s understanding of PHP’s built-in functions and ability to handle string validation tasks that are common in real-world applications. 4. Object-Oriented Programming Task: Create a PHP class named Circle. This class should encompass a private...
20. What will happen if you call return statement or System.exit on try or catch block ? will finally block execute? This is a verypopular tricky Java questionand its tricky because many programmer think that finally block always executed. This question challenge that concept by putting return...
Java编程狮 0K 查看 Placecom - Interview Question & Answers provides you a wide range of questions (with smart answers) that an organization demands from candidates.This App is an attempt to distribute the well-appraised Placecom Books, that will instill you with the confidence that you need...
While child class can override a static method with another static method with the same signature (return type can be down-casted), it is not truly overridden - it becomes "hidden", but both methods can still be accessed under right circumstances (see question about overloading/overriding abov...
1.CharSequence是一个java接口,代表一个char序列,String、StringBuilder、StringBuffer都实现了该接口,CharSequence实例通过调用toString方法可转化为String对象。 2.String类是final的,不可派生子类,其内部封装的是char[],另外,android下的String类和jdk中的String类是有区别的,android下的String类中部分API通...