trial.java

public class trial {
    public static void main(String[] args) {
        // Do not change
        
        task1("Rahman Arif/17-02-2003/Jakarta/M/A/WNI/Single");
        task1("Alice Rebecca/17-03-1984/London/F/O/WNA/Married");
        task2("Wanda");
        task3();
        task4("VI+X");
    }
    
    public static String task1(String data){
        // Your code here
        // ...
        
        int startPosition = 0;
        //find the first slash position within string stored in variable named data
        int slashPosition =data.indexOf("/");
        //chop the string from the beginning to the first slash position (/ is excluded)
        String name = data.substring(startPosition, slashPosition);
        //split and reverse the name to correct firstname and lastname order
        String firstName=name.substring(name.indexOf(" ")+1, slashPosition);
        String lastName=name.substring(0,name.indexOf(" "));
        //get the first character of first and last name
        String initial = ""+ firstName.charAt(0) + lastName.substring(0,1);
        
        //chop the string stored in variable named data from the first slash (excluded) to the end
        data = data.substring(slashPosition+1);
        //find the position of the next slash
        slashPosition = data.indexOf("/");
        //chop the date of birth dd-mm-yyyy
        String birthDate = data.substring(startPosition,slashPosition);
        //chop the year of birth yyyy
        String birthYear = data.substring(6,birthDate.length());
        //count the age 
        int age = 2024 - (Integer.parseInt(birthYear));
        
        //chop the string stored in variable named data from the second slash (excluded) to the end
        data = data.substring(slashPosition+1);
        //find the position of the next slash
        slashPosition =data.indexOf("/");
        //chop the palce of birth
        String birthPlace =data.substring(startPosition,slashPosition);
        
        //chop the string stored in variable named data from the third slash (excluded) to the end
        data = data.substring(slashPosition+1);
        //find the position of the next slash
        slashPosition = data.indexOf("/");
        //chop the sex data M or F
        String sex = data.substring(startPosition,slashPosition);
        //change M to Male and F to Female
        sex= sex.replace("M","Male");
        sex= sex.replace("F","Female");
        
        //chop the string stored in variable named data from the fourth slash (excluded) to the end
        data = data.substring(slashPosition+1);
        //find the position of the next slash
        slashPosition = data.indexOf("/");
        //chop the blood type data
        String bloodType = data.substring(startPosition,slashPosition);
        
        //chop the string stored in variable named data from the fifth slash (excluded) to the end
        data = data.substring(slashPosition+1);
        //find the position of the next slash
        slashPosition = data.indexOf("/");
        //chop the citizenship data
        String citizen = data.substring(startPosition,slashPosition);
        //check whether local citizen
        boolean isLocalCitizenB = citizen.equals("WNI");
        //change true or false to Yes or No
        String isLocalCitizen =""+isLocalCitizenB;
        isLocalCitizen = isLocalCitizen.replace("true","Yes");
        isLocalCitizen = isLocalCitizen.replace("false","No");
        
        //chop the string stored in variable named data from the sixth slash (excluded) to the end
        data = data.substring(slashPosition+1);
        //chop the marital status data
        String maritalStatus = data.substring(startPosition);
        
        //generating the output
        String line1 = "Full Name: " + firstName + " "+lastName+ " (" + initial + ")";
        String line2 = "Age: " + age;
        String line3 = "City of Birth: " + birthPlace;
        String line4 = "Sex: " +sex;
        String line5 = "Blood Type: " + bloodType;
        String line6 = "Local Citizen: " + isLocalCitizen;
        String line7 = "Marital Status: "+ maritalStatus;
        
        //store the output to variable named output
        String output = line1 + "\n" + line2+ "\n" + line3+ "\n" + line4 + "\n" + line5 + "\n" + line6+"\n"+line7;
        
        //print out the output
        System.out.println(output);
  
        return output; 
    }
    
    public static String task2(String name){
        // Your code here
        // ...
        
        //store all alphabet to single string
        //each alphabet with its index: a -> 0, b->1. ... z ->25
        String alphabet = "abcdefghijklmnopqrstuvwxyz";
        
        //change the input to lowercase, since tha alphabets are all in lowercase
        name=name.toLowerCase();
        
        //set the key
        
        int key = 5;
        
        //shift each character to 5 places right, if more than 25 then it back to 0
        String k1 = ""+alphabet.charAt((alphabet.indexOf(name.charAt(0)) + key)%alphabet.length());
        String k2 = ""+alphabet.charAt((alphabet.indexOf(name.charAt(1)) + key)%alphabet.length());
        String k3 = ""+alphabet.charAt((alphabet.indexOf(name.charAt(2)) + key)%alphabet.length());
        String k4 = ""+alphabet.charAt((alphabet.indexOf(name.charAt(3)) + key)%alphabet.length());
        String k5 = ""+alphabet.charAt((alphabet.indexOf(name.charAt(4)) + key)%alphabet.length());
        
        //change the first character to upper case
         k1=k1.toUpperCase();
        
        //generate the output
        String output =k1+k2+k3+k4+k5;
        System.out.println("\ninput=" + name);
        //print out the output
        System.out.println("output="+output+"\n");
        
        //return the output
        return output;
    }
    
    public static void task3(){
        
        //declare and initialize the variables
        
        int priceOfCoffee = 15000;
        int priceOfTea = 10000;
        int priceOfPizza = 45000;
        char currency = '$';
        int numOfCoffee = 3;
        int numOfTea = 5;
        int numOfPizza = 1; 
        String nameOfCustomer = "Albert";
        
        double discountOfCoffee = 0.10;
        double discountOfTea = 0.15;
        double discountOfPizza = 0.05;
        double Tax = 0.11;
        double cashInHand = 200000;
        
        // count number of items
        int numOfItems = numOfCoffee+numOfTea+numOfPizza;

        // count the total price
        double totalPrice = priceOfCoffee*numOfCoffee+priceOfPizza*numOfPizza+priceOfTea*numOfTea;
        // count the total price after tax
        double totalPriceAfterTax = totalPrice+(totalPrice*Tax);
        // print total price
        System.out.println("Total Price: "+ currency + totalPrice);
        
        // count the change 
        double change = cashInHand-totalPriceAfterTax;
        //printing the change
        System.out.println("Change: "+currency +change);

        // count amount of donation
        double donation = change%1000;
        System.out.println("Donation: "+currency +donation);

         
        // print the receipt
        System.out.println("-----------------------------------\n");
        System.out.println("Name Of Customer: "+nameOfCustomer);
        System.out.println("ORDERS");
        System.out.println("Number Of Items " + numOfItems);
        System.out.println("Tea  \t|\t" + numOfTea + "\t|\t"  + priceOfTea*numOfTea);
        System.out.println("Coffee\t|\t" + numOfCoffee + "\t|\t"  + priceOfCoffee*numOfCoffee);
        System.out.println("Pizza\t|\t" + numOfPizza + "\t|\t"  + priceOfPizza*numOfPizza);
        System.out.println("Total Before Tax: "+ currency +totalPrice);
        System.out.println("Tax: " + Tax*100 + '%');
        System.out.println("Total After Tax "+ currency +totalPriceAfterTax);
        System.out.println("Amount Paid: "+currency+ cashInHand);
        System.out.println("Change: " + currency +change);
        System.out.println("Donation Amount: "+currency +donation);
        System.out.println("-----------------------------------");
    }
    
    public static void task4(String input){
        // Your code goes here
        // ...
        int first_position=0;
        int slashing=input.indexOf("+");
        String input1=input.substring(first_position, slashing);
        String input2=input.substring(slashing+1,input.length());
        input1=input1.replace("VIII", "8");
        input1=input1.replace("VII", "7");
        input1=input1.replace("VI", "6");
        input1=input1.replace("V", "5");
        input1=input1.replace("IX", "9");
        input1=input1.replace("X", "10");
        input2=input2.replace("VIII", "8");
        input2=input2.replace("VII", "7");
        input2=input2.replace("VI", "6");
        input2=input2.replace("V", "5");
        input2=input2.replace("IX", "9");
        input2=input2.replace("X", "10");
        int hasil=Integer.parseInt(input1)+Integer.parseInt(input2);
        int puluhan=hasil/10;
        String awalan=""+puluhan;
        awalan=awalan.replace("1","X");
        awalan=awalan.replace("2","XX");
        int satuan=hasil%10;
        String akhiran=""+satuan;
        akhiran=akhiran.replace("8", "VIII");
        akhiran=akhiran.replace("7", "VII");
        akhiran=akhiran.replace("6", "VI");
        akhiran=akhiran.replace("5", "V");
        akhiran=akhiran.replace("9", "IX");
        akhiran=akhiran.replace("4", "IV");
        akhiran=akhiran.replace("3", "III");
        akhiran=akhiran.replace("2", "II");
        akhiran=akhiran.replace("1", "I");
        akhiran=akhiran.replace("0", "");
        String output=""+awalan+akhiran;
        System.out.println(output);
    }
}