Download Assignment02

Introductory Programming
Assignment 02
Teaching Assistant: Jesper Mouritzen
Name
Ravikumar Kemapaih
Assignment02
-1-
Ravikumar Kempaiah
OUTPUT:
Input new Name:
Harshith Paul
Input the Persons height in Cms:
170
Person 1 : John Doe, 175 Cm.
Person 2 : Ravikumar, 176 Cm.
Person 3 : Harshith Paul, 170 Cm.
The average height of 3 persons is : 173.67CM
MODIFICATION
Enter new height value in Cms:
176
UPDATED PERSONS INFORMATION
Person 1 : John Doe, 175 Cm.
Person 2 : Ravikumar, 176 Cm.
Person 3 : Harshith Paul, 176 Cm.
The average height of 3 persons is : 175.67 Cm
Screen shot
Assignment02
-2-
Ravikumar Kempaiah
SOURCE CODE:
Person.java
/* ***************************************************************
* Person.java Author: Ravikumar Kempaiah
Assignment01
* Person Class without main method
/************************************************************** */
public class Person {
//Define attributes person and height
String person;
int height;
//***************************************************************
// Constructor: Sets name and hegiht
//***************************************************************
public Person(){
person = "John Doe";
height = 175;
}
//**************************************************************
//
Constructor: Takes parameters name and height
//**************************************************************
public Person(String name, int height1){
person = name;
height = height1;
}
//**************************************************************
// Name mutator
//**************************************************************
public void setName(String navn){
person = navn;
}
//**************************************************************
// Name accessor
//**************************************************************
public String getName(){
return person;
}
//**************************************************************
// Persons height mutator
//**************************************************************
Assignment02
-3-
Ravikumar Kempaiah
public void setHeight(int tall){
height = tall;
}
//**************************************************************
// Persons height accessor
//**************************************************************
public int getHeight(){
return height;
}
//**************************************************************
// returns string representation of Persons name and height
//**************************************************************
public String toString(){
return person+ ", " +height+" Cm.";
}
}
TestPerson.java
/* ***************************************************************
* TestPerson.java Author: Ravikumar Kempaiah Assignment01
* TestPerson Class with main method
* Creats 3 Person objects and displays there name, height and average of their height
/************************************************************** */
import java.util.Scanner;
public class TestPerson {
public static void main(String args[]){
Person P1, P2, P3; // declare 3 Person objects
float sum, average;
String InputName;
int InputHeight, chgHeight;
// Instatiate 3 Person objects
P1 = new Person();// Instatiate using constructor without parameter
P2 = new Person("Ravikumar", 176); // with parameter
// Read name of the person through input
Scanner scan = new Scanner(System.in);
System.out.println("Input new Name: ");
InputName = scan.nextLine();
// Read height of the person through input
Scanner scanHeight = new Scanner(System.in);
Assignment02
-4-
Ravikumar Kempaiah
System.out.println("Input the Persons height in Cms: ");
InputHeight = scanHeight.nextInt();
// instatiate using the input values as parameters
P3 = new Person(InputName, InputHeight);
// Print the contents (name and height) of each person
System.out.println("Person 1 : "+P1.toString());
System.out.println("Person 2 : "+P2.toString());
System.out.println("Person 3 : "+P3.toString());
// Calculate and display the average height of the persons
sum = P1.getHeight()+ P2.getHeight()+ P3.getHeight();
average = sum/3;
// Round off the float vale to 2 decimal places
DecimalFormat dft = new DecimalFormat("0.##");
System.out.println("The average height of 3
dft.format(average)+ " Cm \n\n");
persons
is
:
"
+
// Modify the height of the 3rd person through user input
System.out.println("MODIFICATION ");
System.out.println("Enter new height value in Cms: ");
Scanner scanHt = new Scanner (System.in);
chgHeight = scanHt.nextInt();
P3.setHeight(chgHeight);
// Print the updated contents of the persons
System.out.println("UPDATED PERSONS INFORMATION ");
System.out.println("Person 1 : "+P1.toString());
System.out.println("Person 2 : "+P2.toString());
System.out.println("Person 3 : "+P3.toString());
// find the new average height of the persons
sum = P1.getHeight()+ P2.getHeight()+ P3.getHeight();
average = sum/3;
System.out.println("The average height of 3 persons is : " + dft.format(average) + "
Cm");
}
}
Assignment02
-5-
Ravikumar Kempaiah