Java Basic Questions

#What is Java

Java is the high-level, object-oriented, robust, secure programming language, platform-independent, high performance, Multithreaded, and portable programming language. It was developed by James Gosling in June 1991. It can also be known as the platform as it provides its own JRE and API.

#What is the difference between == and equals()?

#What is Internal Iterator in Java?

#What is External Iterator in Java?

#Difference between Internal And External Iterator?