ICSE − Q & A

I always go wrong in answering Q4( meanings of the given words from the passage) in the english language paper. Any suggestions on getting better?

whats the difference between VALUEOF() and TOSTRING()??

Program to concatenate two arrays........like if one array has 10 indexes and the other 5 indexes, the resultant array must have 15 indexes.....?????

what are the different composite data types? is string function also one?

is it necessary to do the section b part of history civics papers? cause its all long answers and direct questions, although i cant answer them now, i can study before the exam and answer them..........

if they ask us to write the last viceroy of India, should we write Lord mountbatten or C.Rajagopalachari??

can anyone send me all the important dates of history civics pls........

for DUCK NUMBER  we need to also check that 1st digit is not 0, if the number is 000312, it will display duck number(since we are only checking if 1st digit is zero) although it isnt. so how do u check if the consecutive numbers in the first are not zero and something else?

1)what is a NON-parameterized constructor??
2)two differences between selection sort and bubble sort...
3)what are semantic errors and how are they different from logical errors?

if they ask us to use the main method to call all other methods, but there is no void display all methods are only returning values, is it enough to just call the objects(although nothing will be displayed) like just obj.meth1(1,2) or display the values
System.out.println(int p = obj.meth1(1,2));??

1)what is a non parameterized constructor??
2)two differences between selection sort and bubble sort...
3)what are semantic errors and how are they different from logical errors?

Choose the correct answer:
The cell component visible only during cell division
1.Mitochondria 2.Chloroplast 3.Chromosome 4.Chromatin

Odd one out 
Interphase,Prophase,Metaphase,Anaphase