Hello Friends, In this blog post(Core Java Interview Questions On the Introduction of Java) I am going to let you know about a few important questions core Java related to the introduction of Java.
Core Java interview questions cover all the important questions of the topic mentioned above.|Core Java Interview Questions On the Introduction of Java |
These core Java interview questions are a great help to remember all the important highlights and important topics from each Java chapter.|Core Java Interview Questions On the Introduction of Java |
These interview questions will surely help to understand a few very confusing concepts in Java.
Why pointers are eliminated from Java?
The various reasons for the elimination of pointers from Java are given below.
Most of the time pointers create confusion for the programmer.
A pointer may crash a program easily, for example, when we add two pointers, the program crashes immediately.
The same thing could also happen when we forget to free the memory allotted to a variable and reallot it to some other variable.
Pointers break security. Using pointers, harmful programs like viruses and other hacking programs can be developed.
What is the difference between a function and a method?
A method is a function that is written in a class. We do not have a function in Java: instead, we have a method. This means whenever a function is written in Java.
It should be written inside a class only. But if we take C++, we can write the function inside as well as outside the class.
So, in C++, they are called member functions, not a method.
Which part of JVM will allocate the memory for a Java program?
The class loader subsystem of JVM will allocate the necessary memory needed by the Java program.
Which algorithm is used by the garbage collector to remove the unused variables or objects from memory?
The garbage collector uses many algorithms but the most commonly used algorithm is mark and sweep.
How can you call the garbage collector?
The garbage collector is automatically invoked when the program is being run, It can also be called by calling the GC () method of the runtime class or system class in Java.
What is a JIT compiler?
JIT compiler is part of JVM which increases the speed of execution of a Java program.
So this was all about the Core Java interview questions on this topic.
These Core Java interview questions could be a great help in your college viva, academic study, and any job interview.
You can also go through a few more amazing blog links related to core Java interview questions:
Core Java Interview Questions Part 1
Core Java Interview Questions Part 2
Core Java Interview Questions Part 3
Core Java Interview Questions Part 4
Core Java Interview Questions Part 5
Core Java Interview Questions Part 6
Core Java Interview Questions Part 7
Core Java Interview Questions Part 8
Core Java Interview Questions Part 9
Core Java Interview Questions Part 10
Core Java Interview Questions Part 11
Core Java Interview Questions Part 12
Core Java Interview Questions Part 13
Core Java Interview Questions Part 14
Core Java Interview Questions Part 15
Core Java Interview Questions Part 16
Core Java Interview Questions Part 17
Core Java Interview Questions Part 18
Core Java Interview Questions Part 19
Core Java Interview Questions Part 20
Core Java Interview Questions Part 21
JVM In Hindi: Java Virtual Machine
C ++ और Java में अंतर हिंदी में…
In the case of any queries, you can write to us at a5theorys@gmail.com we will get back to you ASAP.
Hope! you would have enjoyed this post about Core Java Interview Questions On the introduction of Java.
Please feel free to give your important feedback in the comment section below.|Core Java Interview Questions On the Introduction of Java |
Have a great time!