Answer:
C++ Program to Find Area and Circumference of a Circle
Area of Circle = PI X Radius X Radius. Where, Where PI is a constant which is equal to 22/7 or 3.141(approx)
Circumference or Circle = 2 X PI X Radius.
Circumference or Circle = PI X Diameter.
Explanation:
Answer:
Basic characteristics of OOAD and compression with SAD can be defined as follows:
Explanation:
The Object-oriented analysis is described as a design and analysis system like an application, that uses Oops programming. It is the measurement model, that is the presentation, which became a part of the object-based review.
The features of OOAD can be defined as follows.
- The complex issues are simply solved.
- The operation of very fast recovery.
- The stability in condition changes.
- Its conceptual method for resolving its extremely complex problems.
The difference in OOAD and SAD can be defined as follows:
- The OOAD mainly focuses upon the design of objects, it can be used in highly complex logical systems, whereas the SAD focuses on data analysis systems and processes.
- The OOAD uses the framework to target data, but the SAD is process-oriented. It uses class and UML diagrams, but SSAD uses DFDs to extract the element, it has many limited steps to prepare and execute, but OOAD relies mostly on initial growth. This method is being developed in the course of the process.
Answer:
public class Pyramid {
public static void main(String[] args) {
int h = 7;
System.out.println("Pattern A");
for(int i = 1; i <= h; ++i)
{
for(int j = 1; j <= i; ++j) {
System.out.print("+");
}
System.out.println();
}
System.out.println();
System.out.println("Pattern B");
for (int i = 1; i<=h; ++i)
{
for(int j = h; j >=i; --j){
System.out.print("+");
}
System.out.println();
}
}
}
Explanation:
- The trick in this code is using a nested for loop
- The outer for loop runs from i = 0 to the heigth of the triangle (in this case 7)
- The inner for loop which prints the (+) sign runs from j = 0 to j<=i
- It prints the + using the print() function and not println()
- In the pattern B the loop is reversed to start from i = height
Answer:
Option b outFile.open("outputData.out");
Explanation:
In C++, there are several classes given to handle output and input of characters to or from files. They are:
- ofstream that write on files
- ifstream that read from files
We can use an object of ofstream to hold the contents that we wish to output to an external file. The general syntax is as follows:
ofstream_obj.open(file_name)
This will create a file with a specific file name and it possesses all the contents from the obstream_obj.
Answer:
DNA obj =new DNA;//obj object created dynamically.
DNA *dnaPtr=&obj.//dnaPtr to store the address of the object.
Explanation:
The above written statements are in C++.The DNA object is created dynamically and it is done in C++ by using new keyword which allocates the heap memory for the object.
Then a dnaPtr is created of type DNA so that it can store the address of the DNA objects.
