Answer:
Input: two numbers x and y Output: the average of x and y Step 1 : input x,y Step 2: sum=0,average=0 Step 3:sum = x + y Step 4:average = sum /2 Step 5: print average.
Explanation:
Input: two numbers x and y Output: the average of x and y Step 1 : input x,y Step 2: sum=0,average=0 Step 3:sum = x + y Step 4:average = sum /2 Step 5: print average.
Algorithms are set of instructions which are to be followed in other to solve a particular problem. The algorithm which gives the average of six values goes thus:
1.)
Input : a, b, c, d, e, f
#takes input of the six numbers
2.)
sum=0 ; average=0
# initialize sum and average variables to 0
3.)
sum = a + b + c + d + e + f
#takes the sum of the six numbers
4.)
average = sum /6
#divide the sum by the number of values.
5)
print average.
#display the average value
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Assuming dataFile is an ofstream object associated with a disk file named payroll.dat, which of the following statements would write the value of the salary variable to the file
A) cout <
B) ofstream
C) dataFile << salary;
D) payroll.dat <
Answer:
dataFile << salary;
Explanation:
To write salary to a file (payroll.dat) using ofstream, you make use of the following instruction:
ofstream dataFile;
myfile.open ("payroll.dat");
myfile <<salary;
myfile.close();
This line creates an instance of ofstream
ofstream dataFile;
This line opens the file payroll.dat
myfile.open ("payroll.dat");
This is where the exact instruction in the question is done. This writes the value of salary to payroll.dat
myfile <<salary;
This closes the opened file
myfile.close();
The Circle and CircleTester have been created, but they have errors. The public and private settings for variables and methods are not all correct.
Your job is to go through and fix them. You will need to make edits in both files to get them working correctly, but once complete, your output should match the output below.
Sample Output:
Circle with a radius of 5.0
The diameter is 10.0
The perimeter is 31.41592653589793
CIRCLE.JAVA
public class Circle {
public double radius;
private Circle(double myRadius) {
radius = myRadius;
private void setRadius(int myRadius){
radius = myRadius;
}
private double getDiameter() {
return radius*2;
}
public double getRadius() {
return radius;
}
private double getPerimeter() {
return Math.PI*getDiameter();
}
private String toString() {
return "Circle with a radius of " + radius;
}
}
CIRCLE TESTER.JAVA
public class CircleTester {
public static void main(String[] args) {
Circle circ = new Circle(10);
circ.radius = 5;
System.out.println(circ);
System.out.println("The diameter is " + circ.getDiameter());
System.out.println("The perimeter is " + circ.getPerimeter())
}
}
Answer:
CIRCLE.JAVA
public class Circle {
private double radius;
public Circle(double myRadius) {
radius = myRadius;
private void setRadius(int myRadius){
radius = myRadius;
}
public double getDiameter() {
return radius*2;
}
public double getRadius() {
return radius;
}
public double getPerimeter() {
return Math.PI*getDiameter();
}
public String toString() {
return "Circle with a radius of " + radius;
}
}
CIRCLE TESTER.JAVA
public class CircleTester {
public static void main(String[] args) {
Circle circ = new Circle(10);
circ.radius = 5;
System.out.println(circ);
System.out.println("The diameter is " + circ.getDiameter());
System.out.println("The perimeter is " + circ.getPerimeter())
}
}
Explanation:
public class Circle {
//This could be made private or public.
//Making it private is better
private double radius;
//This is a constructor. It should be made public
//since it would most likely be used in another class
//to create an object of this class.
//Making it private means no other external class can create
//an object of this class.
//Since the tester class (CIRCLETESTER.java), as shown on line 3,
// needs to create
//an object of this class, this should be made public
public Circle(double myRadius) {
radius = myRadius;
private void setRadius(int myRadius){
radius = myRadius;
}
//This should be made public since it will be
// used in another class (CIRCLETESTER.java in this case)
public double getDiameter() {
return radius*2;
}
public double getRadius() {
return radius;
}
//This should be made public since it will be
//used in another class (CIRCLETESTER.java)
public double getPerimeter() {
return Math.PI*getDiameter();
}
//The toString() method is the string representation
//of an object and is called when there is an attempt to
//print the object. It should be made public since it will
//be used in another class (CIRCLETESTER.java)
public String toString() {
return "Circle with a radius of " + radius;
}
}
CIRCLE TESTER.JAVA
public class CircleTester {
public static void main(String[] args) {
Circle circ = new Circle(10);
circ.radius = 5;
System.out.println(circ);
System.out.println("The diameter is " + circ.getDiameter());
System.out.println("The perimeter is " + circ.getPerimeter())
}
}
1.16 LAB: Input and formatted output: House real estate summary Sites like Zillow get input about house prices from a database and provide nice summaries for readers. Write a program with two inputs, current price and last month's price (both integers). Then, output a summary listing the price, the change since last month, and the estimated monthly mortgage computed as (currentPrice * 0.051) / 12 (Note: Output directly. Do not store in a variable.).
Ex: If the input is:
200000 210000
the output is:
This house is $200000. The change is $-10000 since last month.
The estimated monthly mortgage is $850.0.
Note: Getting the precise spacing, punctuation, and newlines exactly right is a key point of this assignment. Such precision is an important part of programming.
import java.util.Scanner;
public class LabProgram {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
int currentPrice;
int lastMonthsPrice;
currentPrice = scnr.nextInt();
lastMonthsPrice = scnr.nextInt();
/* Type your code here. */
}
Answer:
Please find the complete code and the output in the attachement.
Explanation:
In the code, a class "LabProgram" is defined, and inside the main method two integer variable "currentPrice and lastMonthsPrice" is defined that uses the scanner class object is used for a user input value, and in the next step, two print method is declared that print the calculate of the integer variable.
The program is an illustration of output formats in Java
The statements that complete the program are:
System.out.printf("This house is $%d. The change is $%d since last month.\n",currentPrice,(currentPrice - lastMonthsPrice));System.out.printf("The estimated monthly mortgage is $%.1f.\n",(currentPrice * 0.051)/12);To format outputs in Java programming language, we make use of the printf statement, followed by the string literal that formats the required output
Take for instance:
To output a float value to 2 decimal place, we make use of the literal "%.2f"
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what time is spellrd the same forwards and backwards
What email program would you suggest and why?
Answer:
An email program
Explanation:
And why?
Answer:
I would suggest g m a i l.
Explanation:
I use G m a i l all the time and I think it is easy to use! A lot of people think it is great too! :)
A specification can be a written document, a set of graphical, a formal mathematical model, a collection of usage scenarios (or, use cases), a prototype, or any combination of these.
A. True
B. False
Answer:
The given statement is "True". A further explanation is given below.
Explanation:
The specification would be a necessary condition that is explicitly indicated, for obvious reasons, concerning the great components throughout the prototype of being something. A detailed explanation of that same performance aspects, normally with particular established standards, is presented in terms appropriate to lead to the creation both for real manufacturing and building methods of such a component with either the personality traits mentioned throughout the structural performance.So the above is the appropriate response.