// imports allow you to use code already written by others. It is good to explore and learn libraries. The names around the dots often give you a hint to the originator of the code.
import java.util.Scanner; //library for user input
import java.lang.Math; //library for random numbers
public class Menu {
// Instance Variables
public final String DEFAULT = "\u001B[0m"; // Default Terminal Color
public final String[][] COLORS = { // 2D Array of ANSI Terminal Colors
{"Default",DEFAULT},
{"Red", "\u001B[31m"},
{"Green", "\u001B[32m"},
{"Yellow", "\u001B[33m"},
{"Blue", "\u001B[34m"},
{"Purple", "\u001B[35m"},
{"Cyan", "\u001B[36m"},
{"White", "\u001B[37m"},
};
// 2D column location for data
public final int NAME = 0;
public final int ANSI = 1; // ANSI is the "standard" for terminal codes
// Constructor on this Object takes control of menu events and actions
public Menu() {
Scanner sc = new Scanner(System.in); // using Java Scanner Object
this.print(); // print Menu
boolean quit = false;
while (!quit) {
try { // scan for Input
int choice = sc.nextInt(); // using method from Java Scanner Object
System.out.print("" + choice + ": ");
quit = this.action(choice); // take action
} catch (Exception e) {
sc.nextLine(); // error: clear buffer
System.out.println(e + ": Not a number, try again.");
}
}
sc.close();
}
// Print the menu options to Terminal
private void print() {
//System.out.println commands below is used to present a Menu to the user.
System.out.println("-------------------------\n");
System.out.println("Choose from these choices");
System.out.println("-------------------------\n");
System.out.println("1 - Print the full roster of the LA");
System.out.println("2 - Utilize Java Math Classes");
System.out.println("3 - Loading in color");
System.out.println("0 - Quit");
System.out.println("-------------------------\n");
}
// Private method to perform action and return true if action is to quit/exit
private boolean action(int selection) {
boolean quit = false;
switch (selection) { // Switch or Switch/Case is Control Flow statement and is used to evaluate the user selection
case 0:
System.out.print("Goodbye, World!");
quit = true;
break;
case 1:
String[] LAC = {"LAC Roster", "Nicolas Batum", "Brandon Boston", "Amir Coffey", "Robert Covington", "Paul George", "Reggie Jackson", "Luke Kennard", "Kawhi Leonard", "Terance Mann", "Marcus Morris Sr", "Norman Powell", "Jason Preston", "John Wall", "Ivica Zubac"};
for (int i = 0; i < LAC.length; i++) {
System.out.println(LAC[i]);
}
break;
case 2:
System.out.println("Here are the mathematical calculations for the number 25! ");
int a = 25;
System.out.println("Sine value of 25 is: " +Math.sin(a));
System.out.println("Cosine value of 25 is: " +Math.cos(a));
System.out.println("Tangent value of 25 is: " +Math.tan(a));
System.out.println("Arc sine value of 25 is: " +Math.asin(a));
System.out.println("Arc Cosine value of 25 is: " +Math.acos(a));
System.out.println("Arc Tangent value of 25 is: " +Math.atan(a));
break;
case 3:
System.out.print("Loading...");
for (int i = 0; i < 20; i++) { // fixed length loading bar
int random = (int) (Math.random() * COLORS.length); // random logic
try {
Thread.sleep(100); // delay for loading
} catch (Exception e) {
System.out.println(e);
}
System.out.print(COLORS[random][ANSI] + "#");
}
break;
default:
//Prints error message from console
System.out.print("Unexpected choice, try again.");
}
System.out.println(DEFAULT); // make sure to reset color and provide new line
return quit;
}
// Static driver/tester method
static public void main(String[] args) {
new Menu(); // starting Menu object
}
}
Menu.main(null);
