Crated a temperature converter
This commit is contained in:
Cameron Seamons
parent
abec7f6016
commit
c4e62fc5a3
2 changed files with 122 additions and 5 deletions
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@ -4,10 +4,25 @@
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@ -46,6 +61,7 @@
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@ -53,6 +69,7 @@
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@ -188,7 +229,9 @@
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<MESSAGE value="fixed name of compoundInterest" />
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<MESSAGE value="explored substring methods" />
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<MESSAGE value="made a lbs to kgs weight converter" />
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<MESSAGE value="explored ternary operator" />
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74
practice_projects/src/TempConverter.java
Normal file
74
practice_projects/src/TempConverter.java
Normal file
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@ -0,0 +1,74 @@
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import java.util.Scanner;
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public class TempConverter {
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// Define methods to convert each temperature
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// Celsius to Fahrenheit
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static double celToFar(double c) { return (c * 9.0 / 5.0) + 32; }
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// Fahrenheit to Celsius
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static double farToCel(double f) { return (f - 32) * 5.0 / 9.0; }
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public static void main(String[] args){
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// Initialize scanner to take input
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Scanner scanner = new Scanner(System.in);
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// Styled header just to make things pretty
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System.out.println("=== Welcome to the Temperature Converter ===");
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// Create a loop so we can build in error checking
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while(true) {
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// Ask user which option they want to convert
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System.out.print("Which do you want to convert? (C) or (F): ");
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// trim and convert to lower to make sure grab answer whether capitalized or not
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String choice = scanner.nextLine().trim().toLowerCase();
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if(!choice.equals("c") && !choice.equals("f") ){
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System.out.println("Invalid Choice. Please enter C or F.");
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continue;
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}
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// Check which option the user entered
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boolean isCelsius = choice.equals("c");
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String fromUnit = isCelsius ? "C" : "F";
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String toUnit = isCelsius ? "F" : "C";
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// Ask for a temperature to convert
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System.out.printf("Enter a temperature in %s: ", fromUnit);
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double temperature;
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// make sure a valid number is input
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try {
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temperature = Double.parseDouble(scanner.nextLine());
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}
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catch (NumberFormatException e) {
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System.out.println("Invalid Temperature. Please enter a number");
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continue;
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}
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// use ternary to convert temperature ine one line
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double newTemp = isCelsius ? celToFar(temperature) : farToCel(temperature);
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// Print out the resulting converted temperature
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System.out.printf("%.1f°%s is %.1f°%s\n", temperature, fromUnit, newTemp, toUnit);
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// Check if user wants to convert another
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System.out.print("Convert another? (y/n): ");
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// Treat anything other than a "y" as a No.
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if(!scanner.nextLine().trim().equalsIgnoreCase("y")){
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System.out.println("\n--- Thanks for using the Temperature Converter!! ---");
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break;
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}
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}
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// Close scanner so we dont leave resources open
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scanner.close();
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}
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}
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