2.C, Java - rextester

2.C

//'main' method must be in a class 'Rextester'.
//openjdk version '11.0.5' 
//Name:A.Razak_reg.no:191FA07051;

import java.util.*;
import java.lang.*;

class Rextester
{  
    static Scanner sc = new Scanner(System.in);
	static int option;
    
    public static void main(String args[])
    {
        System.out.println("Welcome to Powered Air Service. What would like to do?");
        
        while(true)
		{
            System.out.println(" 1.Know my balance.\n 2.Know my validity date.\n 3.Know number of free calls available.\n 4.More\n 5.Exit");
			option = sc.nextInt();
			switch(option)
			{
				case 1: balance(); break;
				case 2: validity(); break;
				case 3: free_calls(); break;
				case 4: more(); break;
				case 5: exit(); break;
				default: System.out.println("Invalid Option.");break;
             }
        }
     }
    public static void balance()
	{
		// code to check balance
		System.out.println("Your current balance is \"Balance\".\n");
	}
	public static void validity()
	{
		// code to check validity
		System.out.println("Your current package expires on \"Date\".\n");
	}
    public static void free_calls()
	{
		// code to check free calls
		System.out.println("You have \"FreeCalls\" left.\n");
	}
	public static void more()
	{
		more: while(true)//labeling the loop
		{
			System.out.println(" 1.Prepaid Bill Request.\n 2.Customer Preference.\n 3.GPRS activation.\n 4.Special Message Offer\n 5.Special GPRS offer.\n 6.3G Activation. \n 7.back <-");
			option = sc.nextInt();
            switch(option)
			{
				case 1: System.out.println("This is option 1 in more\n"); break;
				case 2: System.out.println("This is option 2 in more\n"); break;
				case 3: System.out.println("This is option 3 in more\n"); break;
				case 4: System.out.println("This is option 4 in more\n"); break;
				case 5: System.out.println("This is option 5 in more\n"); break;
				case 6: System.out.println("This is option 6 in more\n"); break;
				case 7: break more;
				default: System.out.println("Invalid Option.");break;
			}
		}
	}
    public static void exit()
	{
		// code to know balance
		System.out.println("Thank You!");
		System.exit(0);
	}
}


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