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Consider the following program segment and answer the questions given below:
int x[][]={{2,4,5,6}, {5,7,8,1}, {34,2,10,9}};- What is the position of 34?
- What is the result of x[2][3] + x[1][2]?
Concept: undefined >> undefined
Define a class to accept values into a 4 × 4 array and find and display the sum of each row.
Example:
A[][]={1,2,3,4),{5,6,7,8},{1,3,5,7},{2,5,3,1}}
Output:
sum of row 1=10 (1+2+3+4)
sum of row 2=26 (5+6+7+8)
sum of row 3=16 (1+3+5+7)
sum of row 4=11 (2+5+3+1)
Concept: undefined >> undefined
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What are the two ways of invoking functions?
Concept: undefined >> undefined
Differentiate between formal parameter and actual parameter.
Concept: undefined >> undefined
How are private members of a class different from public members?
Concept: undefined >> undefined
Write a menu-driven program to display the pattern as per the user’s choice.
For an incorrect option, an appropriate error message should be displayed.
Concept: undefined >> undefined
int x = (int) 32.8; is an example of ______ typecasting.
Concept: undefined >> undefined
Method which is a part of a class rather than an instance of the class is termed as ______.
Concept: undefined >> undefined
Invoking a method by passing the objects of a class is termed as ______.
Concept: undefined >> undefined
Assertion (A): Static method can access static and instance variables.
Reason (R): Static variables can be accessed only by static method.
Concept: undefined >> undefined
Identify the literal given below:
0.5
Concept: undefined >> undefined
What are the values stored in variables r1 and r2:
(i) double r1=Math.abs(Math.min(-2.83,-5.83));
(ii) double r2=Math.sqrt(Math.floor(16.3));
Concept: undefined >> undefined
Define a class named ParkingLot with the following description :
Instance variables/data members:
int vno — To store the vehicle number
int hours — To store the number of hours the vehicle is parked in the parking lot
double bill — Tb store the bill amount
Member methods:
void input( ) — To input and store the vno and hours.
void calculate( ) — To compute the parking charge at the rate of Rs.3 for the first hours or part thereof, and Rs. 1.50 for each additional hour or part thereof.
void display ( ) — To display the detail
Write a main method to create an object of the class and call the above methods.
Concept: undefined >> undefined
Design n class to overload a function SumSeriesO as follows:
(i)
void SumSeries(int n, double x) – with one integer argument and one double argument to find and display the sum of the series given below:
`"s" = "x"/1 - "x"/2 + "x"/3 - "x"/4 + "x"/5`...... ...... ...... to n terms
(ii)
void SumSeries() – To find and display the sum of the following series:
s = 1 + (1 x 2) + (1 x 2 x 3) + ….. + (1 x 2 x 3 x 4 x 20)
Concept: undefined >> undefined
Identify the statement given below as assignment, increment, method invocation or object creation statement.
System.out.println(“Java”);
Concept: undefined >> undefined
Design a class with the following specifications:
| Class name: | Student |
| Member variables: | name - name of student age - age of student mks - marks obtained stream - stream allocated (Declare,the, variables using appropriate data types) |
Member methods:
| void accept() - | Accept name, age and marks using methods of Scanner class. |
| void allocation() - | Allocate the stream as per following criteria: |
| " mks | stream |
| >=300 | Science and Computer |
| >=200 and <300 | Commerce and Computer |
| >=75 and 200 | Arts and Animation |
| <75 | Try Again |
void print() Display student name, age, mks and stream allocated.
Call all the above methods in main method using an object.
Concept: undefined >> undefined
Define a class to overload the function print as follows:
| void print() | to print the following format | |||
| 1 | 1 | 1 | 1 | |
| 2 | 2 | 2 | 2 | |
| 3 | 3 | 3 | 3 | |
| 4 | 4 | 4 | 4 | |
| 5 | 5 | 5 | 5 | |
| void print(int n) | To check whether the number is a lead number. A lead number is one whose sum of even digits is equal to the sum of odd digits. |
|
e.g. 3669 odd digits sum = 3 + 9 = 12 |
Concept: undefined >> undefined
Define a class to overload the method display() as follows:
void display(): To print the following format using nested loop.
1 2 1 2 1
1 2 1 2 1
1 2 1 2 1
void display (int n, int m): To print the quotient of the division of m and n if m is greater than n otherwise print the sum of twice n and thrice m. double display (double a, double b, double c) - to print the value of z where
z = p × q
`p=(a+b)/c` q = a + b + c
Concept: undefined >> undefined
Method which reverses a given number is ______:
Concept: undefined >> undefined
