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- Differences between java collections interview questions
- What is the difference between HashMap and Hashtable? What is the difference between array (Array) and list (ArrayList)? When should you use Array instead of ArrayList? What is the difference between ArrayList and LinkedList?
- JavaInterview questions 1516 2019-11-29 15:49:08
- Compilation of common Java interview questions
- What are the characteristics of object-oriented? What is the difference between member variables and local variables? What is the difference between static variables and member variables? What are the differences and applications of this and super? What are the methods of sorting? Please list. The difference between String, StringBuffer and StringBuilder.
- JavaInterview questions 2571 2019-11-29 13:55:11
- Java internal classes and reflection interview questions
- What is the difference between Static Nested Class and Inner Class? Note: The creation of non-static inner class objects in Java depends on its outer class objects. Reflection in ava is first able to obtain the bytecode of the class to be reflected in Java.
- JavaInterview questions 2454 2019-11-29 11:24:48
- Java intern interview questions (with answers)
- What are the Java container frameworks? What are the differences between list, map, set, and array? What is the difference between collection and collections? What is the difference between string, stringbuilder, and stringbuffer? What is the difference between == and equals?
- JavaInterview questions 4072 2019-11-28 13:39:06
- Spring bean basic interview questions and answers
- Spring is the most commonly used framework for Java, and Spring's uses are not limited to server-side development. From the perspective of simplicity, testability and loose coupling, most Java applications can benefit from Spring.
- JavaInterview questions 2296 2019-11-27 14:09:29
- Java multithreading and concurrency interview questions (Question 4, with answers)
- ConcurrentLinkedQueue is a thread-safe queue, implemented based on a linked list structure. It is an unbounded queue. In theory, the length of the queue can be expanded infinitely. Like other queues, ConcurrentLinkedQueue also uses the first-in-first-out (FIFO) enqueueing rule.
- JavaInterview questions 1712 2019-11-26 17:17:30
- Common Java interview questions (with answers)
- How to implement queue using array? When using an array to implement a queue, we must pay attention to the overflow phenomenon. In this case, we can use the method of looping the array to solve the problem, that is, connecting the ends of the array. Use the front pointer to point to the first position of the queue and the tail pointer to point to the last position of the queue.
- JavaInterview questions 2337 2019-11-26 15:02:51
- Java multi-threading interview questions worth collecting (with answers)
- This article summarizes some Java multi-threading interview questions and answers for you. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone. For more Java-related knowledge, please visit the Java tutorial column!
- JavaInterview questions 2094 2019-11-25 15:21:58
- Java concurrency basics common interview questions (summary)
- This article summarizes common Java concurrency basic interview questions for everyone. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone. For more Java-related knowledge, please visit the Java tutorial column!
- JavaInterview questions 2163 2019-11-23 16:37:15
- Java multithreading and concurrency interview questions (1~3 questions, with answers)
- When talking about the use and principle of DelayQueue, we first introduce DelayQueue. DelayQueue is an unbounded blocking queue from which elements can only be extracted when the delay expires. The head of the queue is the Delayed element that will be stored the longest after the delay expires.
- JavaInterview questions 2661 2019-11-23 14:56:59
- A complete collection of Java written test questions with answers (classic 11 questions)
- It is true that objects can be created without using a constructor. Calling the clone() method of an object is a copy of the existing object in memory, so the constructor will not be called. Using deserialization means restoring the class object from the file, and the constructor will not be called.
- JavaInterview questions 7590 2019-12-28 15:28:13
- Java written test questions and answers (basic difficulty written test questions)
- There is a java application whose main class name is al, so the source file to save it can be al.java. When calling a method, if you want the method to change the value of the actual parameter, you can use an object as a parameter.
- JavaInterview questions 10816 2019-11-20 16:13:29
- Java smart flow interview written test questions including answers
- In 2006, someone worked for 24 consecutive days and earned a total of 190 yuan (daily wage of 10 yuan, Sunday wage of 5 yuan, and no pay for Sunday rest). It is known that his part-time job started on a certain day in late January, and the 1st of this month happens to be a Sunday. What day in February was the day this person ended his part-time job?
- JavaInterview questions 2840 2019-11-19 16:40:18
- Common multiple choice questions in Java written test
- The known expression int m[] = {0,1,2,3,4,5,6}; The value of the following expression is equal to the length of the array? A m.length(); B. m.length; C. m.length()+1; D. m.length+1.
- JavaInterview questions 3825 2019-11-18 16:46:01
- java gc interview questions and answers (questions 1~5)
- Since there is a GC mechanism, why are there still memory leaks? Why is there a GC mechanism in Java? What memory needs to be reclaimed by Java's GC? When does Java's GC collect garbage? Get a preliminary understanding of lambda expressions in Java8 through 10 examples.
- JavaInterview questions 4675 2019-11-16 16:06:59
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