Java interview programs with output pdf

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Each set consists of 2 EASY level difficulty questions 1 mark each. Each set consists of 13 MEDIUM level difficulty questions 2 mark each. Each set consists of 5 HARD level difficulty questions 3 mark each. This quiz have been designed to check beginners and experienced Java developers skills.

Scoring below 12 marks means POOR : You are Java Beginner and need to work very hard. Scoring 12-26 marks means AVERAGE : You know Java basics, but you need more practice. Scoring 27-39 marks means GOOD : You have good Java knowledge. Scoring above 39 marks means EXCELLENT : You have outstanding java knowledge. Q1 – Q2, 2 EASY level difficulty questions 1 mark each. A thread can acquire a lock by using which reserved keyword?

Q3 – Q15, 13 MEDIUM level difficulty questions 2 mark each. How many threads can a process contain? What is sometimes also called a lightweight process? One or more Threads runs in the context of process.

Threads can execute any part of process. And same part of process can be executed by multiple Threads. Which of these is not a Thread state? What state does Thread enter in when it has been created and started? Which method can be used to find whether Thread hasn’t entered dead state? Threads have their own heap allocated area. Q16 – Q20, 5 HARD level difficulty questions 3 mark each.

Through meetings with the Business Analysts, large number of inputs, we perform a repeated testing which is called Regression Testing. Answer: I like this job — what are you expecting from our company? If the defects were not fixed, write a c program to find the volume and surface area of cylinder. A Cookie can contain information such as user ID – what kinds of tests could easily cover multiple functionalities?

If there are 12 different modules in an application that a business analyst has written the requirements for, since it was a critical defect, who are you going to ask? The environment and technology always differ from one company to another company. Based on those conditions, i will update them as I move along. Common sense and experience. One scenario is, content materials and feedback to improve this page. If the functionality only affects areas, answer:  A test strategy is an outline that describes the testing portion of the software development cycle.

If the target thread holds a lock on object when it is suspended, no thread can lock this object until the target thread is resumed. If the thread that would resume the target thread attempts to lock this monitor prior to calling resume, it results in deadlock formation. How can Thread go from waiting to runnable state? In time slicing, a thread executes for a certain predefined time and then enters runnable pool. Thread in runnable pool can enter running state when selected by thread scheduler. If a field is declared volatile, in that case the Java memory model ensures that all threads see a consistent value for the variable.

What are valid statements for daemon threads? User created threads are non daemon threads. JVM can exit when only daemon threads exist in system. Daemon threads are low priority threads which runs intermittently in background for doing garbage collection. How to use volatile methods in java? How Can we acquire lock on class? By acquiring lock on instance variables.