Scientists estimate that roughly 10 grams of caffeine consumed at one time is a lethal overdose. Write a program with a variable that holds the number of milligrams of caffeine in a drink and outputs how many drinks it takes to kill a person. A 12-ounce can of cola has approximately 34 mg of caffeine, while a 16-ounce cup of coffee has approximately 160 mg of caffeine.
Program Plan:
• Declare integer variables that hold the milli grams of caffeine in cola and coffee.
• Initialize one gram is 1000 milligrams as one_gram=1000
• Covert 10 grams into the milli grams and divide by the number of grams of caffeine the cola drink contains.
• Covert 10 grams into the milli grams and divide by the number of grams of caffeine the coffee drink contains.
• Print number of drinks of cola and number of drinks of coffee to kill a person when consumed at once.
Program Code
/********************************************************
* The java program determines the number of cola drinks*
* and coffees when consumed at once. Then prints *
* the number of cola drinks and number of coffees on *
* console. *
********************************************************/
//PP10.java
public class PP10
{
public static void main(String[] args)
{
//initialize a variable one_gram=1000mg
int one_gram=1000;
/*integer variable that holds 34 mg of the caffeine
in 12 ounce cola */
int caffeine_in_12_ounce_cola=34;
/*integer variable that holds 160 mg of the caffeine
in 16 ounce coffee */
int caffeine_in_16_ounce_coffee=160;
Calculate the number of drinks of cola and caffeine.
/* Covert the 10 grams into the milli grams and divide
by the number of grams that drink contains caffeine.*/
double num_cola_drinks
=10.0*one_gram/caffeine_in_12_ounce_cola;
double num_coffee_drinks=
10.0*one_gram/caffeine_in_16_ounce_coffee;
/* print the number of colas when consumed at once will
kill a person*/
System.out.println("The number of cola drinks to kill a person consumed at once : "+num_cola_drinks);
/* print the number of coffee when consumed at once will
kill a person */
System.out.println("The number of coffees to kill a person
consumed at once : "+num_coffee_drinks);
}//end of main
}//end of the class PP10
Sample output:
The number of cola drinks to kill a person consumed at once : 294.11764705882354
The number of coffees to kill a person consumed at once : 62.5