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A super class EmpSal has been defined to store the details of an employee. Defie a subclass (overtime to compute the total salary of the employee, after adding the overtime amount based on the following criteria.
- If hours are more than 40, then 5000 are added to salary as an overtime amount
- If hours are between 30 and 40 (both inclusive), then 3000 are added to salary as an overtime amount
- If hours are less than 30, then the salary remains unchanged The details of the members of both the classes are given below:
| Class name | EmpSal |
| Data members/instance variables: | |
| empnum | to store the name of the employee |
| empcode | integer to store the employee code |
| salary | to store the salary of the employee in decimal |
| Methods/Member functions: | |
| EmpSal(...) | parameterised constructor to assign values to data members |
| void show() | to display the details of the employee |
| Class name | Overtime |
| Data members/instance variables: | |
| hours | integer to store overtime in hours |
| totsal | to store the total salary in decimal |
| Methods/Member functions: | |
| Overtime(....) | parameterised constructor to assign values to data members of both the classes |
| void calSal() | calculates the total salary by adding the overtime amount to salary as per the criteria given above |
| void show() | to display the employee details along with the total salary (salary +overtime amount) |
Assume that the super class EmpSal has been defined. Using the concept of inheritance, specify the class Overtime giving the details of the constructer (...), void calSal() and void show().
The super class, main function and algorithm need NOT be written.
Concept: undefined > undefined
Assertion: Recursion utilises more memory as compared to iteration.
Reason: Time complexity of recursion is higher due to the overhead of maintaining the function call stack.
Concept: undefined > undefined
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Study the given propositions and the statements marked Assertion and Reason that follow it. Choose the correct option on the basis of your analysis.
p = I am a triangle
q = I am a three-sided polygon
s1 = p → q
s2 = q → p
Assertion: s2 is converse of s1
Reason: Three-sided polygon must be a triangle.
Concept: undefined > undefined
Assertion: In Java, the String class is used to create and manipulate strings, and it is immutable.
Reason: Immutability ensures that once a String object is created, its value cannot be changed.
Concept: undefined > undefined
A full adder needs five gates and those are 3 AND gates, 1 OR gate and 1 XOR gate. When a full adder is constructed using 2 half adders, it also requires 5 gates. State the names along with the quantity those gates.
Concept: undefined > undefined
Draw the logic gate diagram for the reduced expression. Assume that the variables and their complements are available as inputs.
Concept: undefined > undefined
Answer the following questions related to the below image:
- What is the output of the above gate if input A=0, B=1?
- What are the values of the inputs if output =1?
Concept: undefined > undefined
Given are two strings, input string and a mask string that remove all the characters of the mask string from the original string.
| Example: | INPUT: | ORIGINALSTRING: | communication |
| MASK STRING: | mont | ||
| OUTPUT: | cuicai |
A class StringOp is defined as follows to perform above operation.
Some of the members of the class are given below:
| Class name | StringOp |
| Data members/instance variables: | |
| str | to store the original string |
| msk | to store the mask string |
| nstr | to store the resultant string |
| Methods / Member functions: | |
| StringOp() | default constructor to initialize the data member with legal initial value |
| void accept( ) | to accept the original string str and the mask string msk in lower case |
| void form() | to form the new string nstr after removal of characters present in mask from the original string |
| void display( ) | to display the original string and the newly formed string nstr |
Specify the class StringOp giving details of the constructor( ), void accept( ), void form() and void display( ). Define a main( ) function to create an object and call all the functions accordingly to enable the task.
Concept: undefined > undefined
A class Mixarray contains an array of integer elements along with its capacity (More than or equal to 3). Using the following description, form a new array of integers which will contain only the first 3 elements of the two different arrays one after another.
Example:
Array1: { 78, 90, 100, 45, 67 }
Array2: {10, 67, 200, 90 }
Resultant Array: { 78, 90, 100, 10, 67, 200}
The details of the members of the class are given below:
| Class name | Mixarray |
| Data members/instance variables: | |
| arr[] | integer array |
| cap | integer to store the capacity of the array |
| Member functions/methods: | |
| Mixarray (int mm ) | to initialize the capacity of the array cap=mm |
| void input( ) | to accept the elements of the array |
| Mixarray mix(Mixarray P, Mixarray Q) | returns the resultant array having the first 3 elements of the array of objects P and Q |
| void display( ) | to display the array with an appropriate message. |
Specify the class Mixarraygiving details of the constructor(int), void input( ), Mixarray mix(Mixarray,Mixarray) and void display( ). Define a main( ) function to create objects and call all the functions accordingly to enable the task.
Concept: undefined > undefined
Write the statement in Java to extract the word “MISS” from the word “SUBMISSION”.
Concept: undefined > undefined
What is the output of the statement given below?
System.out.print("FAN" + ("AUTOMATIC".charAt(5) ) );Concept: undefined > undefined
A class Fibo has been defined to generate the Fibonacci series 0, 1, 1, 2, 3, 5, 8, 13, ……. (Fibonacci series are those in which the sum of the previous two terms is equal to the next term).
Some of the members of the class are given below:
| Class name | Fibo |
| Data member/instance variable: | |
| start | integer to store the start value |
| end | integer to store the end value |
| Member functions/methods: | |
| Fibo( ) | default constructor |
| void read( ) | to accept the numbers |
| int fibo(int n) | return the nth term of a Fibonacci series using recursive technique |
| void display( ) | displays the Fibonacci series from start to end by invoking the function fibo() |
Specify the class Fibo, giving details of the Constructor, void read( ), int fibo(int), and void display( ). Define the main() function to create an object and call the functions accordingly to enable the task.
Concept: undefined > undefined
A class Gcd has been defined to find the Greatest Common Divisor of two integer numbers. Some of the members of the class are given below:
| Class name | Gcd |
| Data member/instance variable: | |
| num1 | integer to store the first number |
| num2 | integer to store the second number |
| Member functions/methods: | |
| Gcd( ) | default constructor |
| void accept( ) | to accept the numbers |
| int gcd(int x,int y) | return the GCD of the two numbers x and y using recursive technique |
| void display( ) | displays the result with an appropriate message |
Specify the class Gcd, giving details of the Constructor, void accept( ), int gcd(int,int), and void display( ). Define the main() function to create an object and call the functions accordingly to enable the task.
Concept: undefined > undefined
A super class Godown has been defined to store the details of the stock of a retail store. Define a subclass Update to store the details of the items purchased with the new rate and update the stock. Some of the members of both the classes are given below:
| Class name | Godown |
| Data members/instance variables: | |
| item | to store the name of the item |
| qty | to store the quantity of an item in stock |
| rate | to store the unit price of an item |
| amt | to store the net value of the item in stock |
| Member functions/methods: | |
| Godown(…) | parameterized constructor to assign value to the data members |
| void display( ) | to display the stock details |
| Class name | Update |
| Data members/instance variables: | |
| pur_qty | to store the purchase quantity |
| pur_rate | to store the unit price of the purchased item |
| Member functions/methods: | |
| Update(…) | parameterized constructor to assign values to the data members of both the classes |
| void update( ) | to update the stock by adding the previous quantity by the purchased quantity and replace the rate of the item if there is a difference in the purchase rate. Also update the current stock value as: (quantity * unit price) |
| void display( ) | to display the stock details before and after updating |
Assume that the super class Godown has been defined. Using the concept of inheritance, specify the class Update giving details of the constructor, void update ( ) and void display( ).
The super class, main function and algorithm need NOT be written.
Concept: undefined > undefined
State any one purpose of using the keyword this in Java programming.
Concept: undefined > undefined
A matrix M[- 6, ... 10, 4 ... 15] is stored in the memory with each element requiring 4 bytes of storage. If the base address is 1025, find the address of M [4] [8] when the matrix is stored in Column Major wise.
Concept: undefined > undefined
Differentiate between half adder and full adder. Write the Boolean expression and draw the logic circuit diagram for the SUM and CARRY of a full adder.
Concept: undefined > undefined
How is Encoder different from a decoder?
Concept: undefined > undefined
A class Sort Alpha has been defined to sort the words in the sentence in alphabetical order.
Example: Input: THE SKY IS BLUE
Output: BLUE IS SKY THE
Some of the members of the class are given below:
| Class name | Short Alpha |
|
Data members/instance variables: |
|
| sent |
to store a sentence |
| n | integer to store the number of words in a sentence |
|
Methods/Member functions: |
|
| ShortAlpha( ) |
default constructor to initialise data members with legal initial values |
| void acceptsent( ) | to accept a sentence in UPPERCASE |
| void short(SortAlpha P) | sorts the words of the sentence of object P in alphabetical order and stores the sorted sentence in the current object |
| void display( ) | display the original sentence along with the sorted sentence by invoking the method sort( ) |
Specify the class Sort Alpha giving details of the constructor (), void acceptsent(), void sort (Sort Alpha) and void display(). Define a main()function to create an object and call the functions accordingly to enable the task.
Concept: undefined > undefined
