A subclass can be generalized to a superclass. A superclass cannot become a more specific subclass.

There are 8 primitive data types Turn back

String class is also a data type. It is immutable.

Scanner class is used to read input.

An array is a reference data type, meaning that it's just an address

Functions declared static don't need the creation of an instance for being accessed or used.

Object is a superclass of everything we create in java

If a superclass does not have a default constructor(constructor without parameters), any subclasses extending it must make an explicit call to one of the parameterized constructors of the superclass.

An abstract method is a method declared without an implementation. Abstract methods don't have a body. Abstract classes may have abstract and non-abstract methods.

Classes being written in the same file should not have access modifiers or the code will not execute.

No, I'm not rich. I had a tax problem in this country, curiously enough, and my accountant said the British government was patently wrong in taxing me, and they were, but we couldn't persuade them and it cost me everything I had.

The reason why I'm sending my super-intellectual 12-year old kid to tech school is because I don't believe he would succeed in this world unless he first learned to work with his hands.

Strange story about Degas. He hated women, didn't want to be with them. Yet he spent much of his life painting them. He had seen his father maltreat his mother, must have had a deep fear that he'd do the same thing.

By 1980, when I came out of prison, The Sun did a campaign to stop putting vice girls in prison. We've talked about it ever since and nothing has been done about it.

The secret to success is to know something nobody else knows.

A vigorous temper is not altogether an evil. Men who are easy as an old shoe are generally of little worth.

I'd rather be on the cast of 'Love & Hip-Hop' than 'Project Runway.'

Scientists across the globe are catching on - global warming is not real science. There is a sucker born every minute who believes in it, and Al Gore is playing the role of P.T. Barnum.

Those who were cowards never started, and those who were weak were lost on the way, but the brave find a home in every land.

Attention to detail is of utmost importance when you want to look good.

There is no comparison between the training here and the training in Israel.

Instead of getting married again Im going to find a woman I dont like and give her a house.

When something really matters, you should never give up or give in.

I just play for fun.

I was really overwhelmed by the amount of roles that I got offered that were carbon copies of what I did in 'Up in the Air.' I got every offer for every ambitious, unfeeling practically robotic character.

There is something pleasurable for an actor to produce something and not be in it.

Doo never actually made moonshine, but he hauled about an ocean of it.

The earth would be nothing without the people but the man would be nothing without the horse.

To me, it wasn't 'Star Wars' that shaped me; it was more 'Mary Tyler Moore' and, nowadays, 'Louie' and 'Girls.'

My favorite thing about 'Saturday Night's Main Event,' it was that one time where I could stay up late with my dad and four brothers, and we would all beat the tar out of each other while the show was on, and it was all okay because my dad was a wrestling fan.

We account for one-sixth of the forces of gravity we see in the universe. There is no known objects accounting for most of the effective gravity in the universe. Something is making stuff move that is not anything we have ever touched.

If it's all instruction, you get annoyed with it and bored, and you stop reading. If it's all entertainment, you read it quite quickly, your heart going pitty-pat, pitty-pat. But when you finish, that's it. You're not going to think about it much afterward, apart from the odd nightmare. You're not going to read that book again.

I play the guitar a little bit.

Gentlemen, we will chase perfection, and we will chase it relentlessly, knowing all the while we can never attain it. But along the way, we shall catch excellence