Primitves Jupyter Notebook
Understanding primitives
public class Primitives {
public static void main(String[] args) {
int a = 5;
double b = 7.4;
boolean c = true;
String d = "Hi";
String e = new String ("Hey");
System.out.println("An Integer: " + a);
System.out.println("A Double: " + b);
System.out.println("A Boolean: " + c);
System.out.println("A String: " + d);
System.out.println("A String Formal: " + e);
}
}
Primitives.main(null)
import java.util.Scanner;
//creating Class
public class ConvertTemp {
//creating main method
public static void main(String[] args){
//ceclaring variables
double multiplyNum = 1.8;
int addNum = 32;
int choice;
Scanner scanner = new Scanner(System.in);
double number;
while(true) {
//menu options
System.out.println("Press 1 for conversion to C");
System.out.println("Press 2 for conversion to F");
System.out.println("Press 3 to quit");
//ask user for their choice
System.out.println("Make your choice");
choice = scanner.nextInt();
switch (choice) {
//convert celsius to farenheit
case 1:
System.out.println("Enter number");
number = scanner.nextDouble();
System.out.println("Number is: " + number);
System.out.println("Celsius to Farenheit:" + ((number * multiplyNum)+addNum));
break;
//convert farenheit to celsius
case 2:
System.out.println("Enter number");
number = scanner.nextDouble();
System.out.println("Number is: " + number);
System.out.println("Farenheit to Celsius:" + ((number - addNum) / multiplyNum ));
break;
//quit the program
case 3:
System.exit(0);
//default case to display the message invalid choice made by the user
default:
System.out.println("Invalid choice. Input a valid choice (1,2,3) \\n\\n");
}
}
}
}
ConvertTemp.main(null)