If you’re interviewing for a Java programming role, then your coding skills will probably be tested. Whether you’re a beginner in Java or an expert programmer, this article provides some common Java interview questions and answers to help you prepare. 1. How do you reverse a string in Ja...
29) How to perform Serialization and Deserialization? Use ObjectOutputStream for serialization and ObjectInputStream for deserialization. 30) What happens if you don't use serialization? Objects cannot be stored or transmitted as a byte stream, so when encounters error a java.lang. RuntimeException...
We can convert a Java object to a Stream that is called Serialization. Once an object is converted to Stream, it can be saved to file or send over the network or used in socket connections. The object should implement a Serializable interface and we can use java.io.ObjectOutputStream to ...
Stream<Integer> intStream = IntStream.rangeClosed(0, 9).boxed(); Stream<String> arrayStream = Arrays.stream(newString[]{"a", "b", "c"}); Stream.generate(Math::random).limit(10).forEach(System.out::println);//无限流Stream.iterate(0, t -> t + 2).limit(10).forEach(System.out:...
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In this tutorial, we have covered almost 50+ important core Java interview questions for freshers and experienced candidates. This post on JAVA Interview Questions is prepared to help you understand the basic concepts of Java programming for interview purposes. All the important JAVA concepts are exp...
Java Interview Questions/Java面试题 . What is transient variable? Transient variable can't be serialize. For example if a variable is declared as transient in a Serializable class and the class is written to an ObjectStream, the value of the variable can't be written to the stream instead ...
1. Overview Exceptions are an essential topic that every Java developer should be familiar with. This article provides answers to some of the questions that might pop up during an interview. 2. Questions Q1. What Is an Exception? An exception is an abnormal event that occurs during the execut...
Ans: This is not really a spring interview questions I would say an AOP one. Similar to Object oriented programming, AOP is another popular programming concept which complements OOPS. Join point is an opportunity within code for which we can apply an aspect. In Spring AOP, a join point alwa...
private void writeObject(java.io.ObjectOutputStream out) throws IOException private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException These methods are already discussed in great details under article Everything You Need to Know About Java Serialization. readObjectNo...