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#### In this paper most of the important topics of ICSE syllabus for class X java is covered.

**Section I (Theory)**

A.**Answer the following questions.**Write a function prototype of the following:- A function ConcatChar which takes a string argument and a character argument and returns a string value.
- Write the java expression for the following.

2AB/P^{2}-S^{3} - Find the output of Z:

int P= 4;

int Z = ++P * (P– + P++); - What is a parameterized constructor?
- Name the package that contains Scanner class.
- Which unit of the class gets called, when the object of the class is created?

- What is function overloading? Explain with example.
- Explain the function prototype and the signature?
- Rewrite the following using if….else
- double disc=(cost>4000)? cost*5/100 : 60;

- Write statements for the following
- To create an object of class Student with default constructor.
- To invoke a method of class Student i.e ShowResult(int marks)

- Analyze the following code and state at which iteration does value of b will equate to the initial value of a.

int a=20, int b=15

while (a>10)

{

a–;

b++;- }
**Section II (Programs)**

- }

**Attempt any two programs [2X10=20] **

- Define a class to overload a function Sum() as follows:

int Sum(int a, int b) â€“ with two integer arguments (a and b) calculate and return the sum of all the even numbers in the range of a and b.

Sample input: a=4 and b=16

Sample output: sum = 4 + 6 + 8 + 10 + 12 + 14 + 16

double Sum( double n ) – with one double arguments(n) calculate and return the product of the following series:

sum = 1.0 x 2.0 x 3.0 x……….x n

int Sum(int n) – with one integer argument (n) calculate and return sum of only odd digits of the number n

Sample Input : N=43961

Sample output : surg 3+9+ 1= 13

- Define the class called Transport with the following description.
**Class : Transport**String name: to enter the name

Data members:

int wt: to enter the weight of the parcel

int charge: To calculate the charges to be paid for the parcel.**Member Functions:**Transport(): default constructor to assign the values to the data members

void input():To input the details

void display() : To display the details

void compute(): to calculate the charges to be paid

The charges for the transport company are as follows**weight of the parcel charges/kg**up to 10 kg Rs/- 30

11 to 25 Rs/- 25

26 to 40 Rs/- 20

More than 40 Rs/- 15

Write a main method to create an object of the class and call the above member methods. - Write a program to make a menu driven program to do the following tasks as per user choice.
**i.**To check for the amicable number (Note: An amicable number are pair of numbers such that one is the sum of proper factors of the other.

For example 220 and 284

sum of factors of 220: 1+2+4+5+10+11+20+22+44+55+110=284

sum of factors of 284:1+2+7+71+142=220**ii.**To check for the prime number. A number that has only two factors is called a prime number. **For videos related to java programming****http://www.youtube.com/user/trushnatej**