Java Hw

Java I Programming ITP 120 Section 002W
Spring 2014
Homework Assignment 1

Due: January 22, 2014 or January 29, 2014 (your choice) Guidelines: Turn in your homework (both the .java & .class files) and hardcopy source program printouts and USB flash drive.
Suggestion: Use Notepad or Notepad++ for your text editor.
Be sure to use proper naming conventions such as:
EX1_10Wilson.java and EX1_11Wilson.java

(1) Complete these Chapter 1 Programming Exercises on page 32

1.10 (Average speed in miles) (50 points)
Use this formula in your program: double mph = ( (14 * (60/45.5))/1.6); // That is, (km / hr) / (1.6 km / mile)

1.11 (Population projection) (50 points) http://www.worldometers.info/world-population/
(The world population in December 2013 is 7,200,000,000 and climbing!) public class {

public static void main(String[] args) {

int startPop = 312023486; int newPop; int birthRate = 7; int deathRate = 13; int immigrationRate = 45; int seconds = 31536000; int years; int startYear = 2012; int endYear = 2017; int more; int births; int deaths; int imm;

years = endYear - startYear;

seconds = 365 * 24 * 60 * 60;

startPop = 312032486;
System.out.println("Current Population: " + startPop);

births = seconds / birthRate * years;
System.out.println("New Born total in five Years: " + births);

deaths = seconds / deathRate * years;
System.out.println("Death total in five Years: " + deaths);

imm = seconds / immigrationRate * years;
System.out.println("Immigration total in five Years: " + imm);

more = births + imm - deaths;
System.out.println("Accumulated Total in five Years: " + more);

newPop = startPop + more;
System.out.println("New Population in five Years: " + newPop);

}// end method }// end of class

public class { public static void main (String[] args) {

double mph;

mph = ((14 * (60/45.5))/1.6);

System.out.println("Speed in miles per hour:" + mph); }// end method
}// end of class

public class { public static void main (String [] args) { int startPop= 312032486; int addPeople = 0; int newPop; int birthRate = 7; int deathRate = 13; int immigrationRate = 45; int seconds; int years; int startYear = 2012; int endYear = 2017; int more; int births; int deaths; int imm;

years = endYear - startYear;

seconds = 365 * 24 * 60 * 60;

births = seconds / birthRate; deaths = seconds / deathRate; imm = seconds /immigrationRate;

more = births + imm - deaths; int pop = startPop;

for (int i = 0; i