ICSE − Q & A

What will be :
1)Math.rint(83.5)
2)Math.ceil(-21.8)
3)Math.max(-3,-4)
q.What is a copy constructor(in simple language please)
q.is exception and run time error one and the same thing?if not what's the dif?

1.What is final class and final variable
2.What is unary + and -?
3.A java program uses a compiler as well as interpreter.Explain
4.Name and state 2 uses of any 2 library classes
5.What is meant by fall through?
6.What is the difference between next() and hasNext() methods?
7.Explain no such element exception
8.What does System.in and System.out refer to?
9.What are streams and their types?
10.What is unicode
Just some questions from my schools revision sheets...pls do answer them.

+ 2 more questions by san_ika  

Difference between round and rint with example
asked by Xyz (san_ika) 7 years ago
2

Difference between || and |
asked by Xyz (san_ika) 7 years ago
1

What will happen here,
X=s.substring(0,0); 
Will it give an error?

If you are getting 100 in this paper at first attempt, you are really well prepared:
http://www.respaper.com/sdfg/9967-pdf.html?cmd=conv
and can sleep peacefully,
otherwise....................

difference between character data type and character wrapper class

Guys is there any way to do Pascal's triangle without using a double dimensional array?
PS:Dont tell me to print everything i know that XD

int z = (++y*(y++ + 5));
if y = 10
Then what is the value of z?
Someone answer with working asap
Thank u in advance :D

Home science students plz help: 2 eating disorders in adolescents?( 2 marks). do we get marks if we write only the names anorexia nervosa and bulimia nervosa or shud we explain it  for complete credit.

What is the difference between valueOf() and parse methods of wrapper classes? Can we use toString() and isUpperCase(), etc?

what is copy intialisation? and a copy constructor