Question

use java thanks

1.Given the following arrays, write a Java program to generate the output below.

   String [] item = {"milo", "water", "coke", "tea", "coffee"};

   double [] price = {3.00, 1.00, 5.00, 2.00, 3.50};

   int [] quantity = {200, 500, 350, 100, 700};

Re-write Question 1 using array list and display the sale of the day report.

Re-write Question 1 using 2-dimensional array and display the sale of the day report.

Write a segment program to replace coke with pepsi with price of RM6.00

Answer 1

Question-1

import java.util.*;
import java.io.*;

public class Sample{

public static void main(String[] args){

String[] item = {"milo","water","coke","tea","coffee"};
double[] price = {3.00,1.00,5.00,2.00,3.50};
int[] quantity = {200,500,350,100,700};

System.out.println(Arrays.toString(item));

System.out.println(Arrays.toString(price));

System.out.println(Arrays.toString(quantity));

}

}

Question-1 Using Array-List

import java.util.*;
import java.io.*;

public class Sample1{

public static void main(String[] args){

String[] item = {"milo","water","coke","tea","coffee"};
double[] price = {3.00,1.00,5.00,2.00,3.50};
int[] quantity = {200,500,350,100,700};

ArrayList<String> itemList = new ArrayList<String>(Arrays.asList(item));
ArrayList<double> priceList = new ArrayList<double>(Arrays.asList(price));
ArrayList<int> QuantityList = new ArrayList<int>(Arrays.asList(quantity));

System.out.println(Arrays.toString(itemList.toArray()));

System.out.println(Arrays.toString(priceList.toArray()));

System.out.println(Arrays.toString(quantityList.toArray()));

for(int i=0; i<itemList.size(); i++){

System.out.println("Sale of " + itemList.get(i) + "is : ");

System.out.print(priceList.get(i)*quantityList.get(i));

}

}

}

Question-1 Using 2-Dimensional Array

import java.util.*;
import java.io.*;

public class Sample2{

public static void main(String[] args){

String[] item = {"milo","water","coke","tea","coffee"};
double[] price = {3.00,1.00,5.00,2.00,3.50};
int[] quantity = {200,500,350,100,700};

double[][] sale = new double[item.length][2];

for(int i=0; i<item.length; i++){

for(int j=0; j<2; j++){

if(j==0)
sale[i][j] = price[i];
else
sale[i][j] = quantity[i];

}
}

System.out.println(Arrays.toString(item));

System.out.println(Arrays.toString(sale));

for(int i=0; i<itemList.size(); i++){

System.out.println("Sale of " + itemList.get(i) + "is : ");

System.out.println(sale[i][0]*sale[i][1]);

}

}

}

Code Snippet to replace coke with pepsi

import java.util.*;
import java.io.*;

public class Sample3{

public static void main(String[] args){

String[] item = {"milo","water","coke","tea","coffee"};
double[] price = {3.00,1.00,5.00,2.00,3.50};
int[] quantity = {200,500,350,100,700};

ArrayList<String> itemList = new ArrayList<String>(Arrays.asList(item));
ArrayList<double> priceList = new ArrayList<double>(Arrays.asList(price));
ArrayList<int> QuantityList = new ArrayList<int>(Arrays.asList(quantity));

int i = itemList.indexOf("coke");

itemList.set(i,"pepsi");
priceList.set(i,6.00);

}

}