Install oracle-java8 in ubuntu

add-apt-repository ppa:webupd8team/java
sudo apt-get install software-properties-common python-software-properties
add-apt-repository ppa:webupd8team/java
apt update; sudo apt install oracle-java8-installer
apt install oracle-java8-set-default

Different ways to create objects in Java

This is a trivia. Yeah, it’s a bit tricky question and people often get confused. I had searched a lot to get all my doubts cleared.

There are four different ways (I really don’t know is there a fifth way to do this) to create objects in java:

1. Using new keyword
This is the most common way to create an object in java. I read somewhere that almost 99% of objects are created in this way.

MyObject object = new MyObject();

2. Using Class.forName()
If we know the name of the class & if it has a public default constructor we can create an object in this way.Continue reading