How can we create an object. How can we Create Test class object?
Ans :- Test obj =new Test();
Core Java
Difference between Vector and Arraylist in Java
In Java ArrayList and Vector classes both are implements List Interface, and both are using resizable …
How to check Java Version By Using Command
Answer: Type cmd in Your Search Bar Then Press Enter and write this command. java hyphen …
ExecutorService in Java
The Java ExecutorService is an interface which is present inside java.util.concurrent package. The ExecutorService interface is …
Understanding the equals() Method in Java.
In Java, the equals method present inside Object class, and it is used to compare the …
Why HashMap does not support order
You A hash map, also known as a hash table, is a data structure that uses …
Q. What is primitive data types in java?
Ans :- Primitive data types are byte, short, int , long, float, double, character , Boolean