This is java.

You are creating a BigInt class. It can hold one number that is very large. The first part of the assignment is to create a constructor that can take a String and convert it to your internal representation of a BigInt. Use an array or ArrayList to hold the integer. Below is a Demo program that your BigInt class should be able to handle. Keep in mind that the number could be negative. Also keep in mind you will need to add and subtract Multiply Devide and modulus BigInt values. Below the Demo are several lines of code dealing with methods of the String class. You must be able to work with String methods to both take the string from the constructor and turn it into the integers in the ArrayList and then turn the ArrayList of integers to a string in the toString() method. The toString() method is called automatically when a BigInt instance is put in a System.out.println() as demonstrated by the next line of code. System.out.println("new BigInt value is " B1);    Here the string "new BigInt value is " is concatenated with the BigInt B1. The System class knows to invoke the BigInt toString()method. The following code will do the same thing: System.out.println("new BigInt value is " B1.toString());    Below the string methods is the Bottle class. Study it carefully. The Bottle class encapsulates a Bottle. The private instance variable pennies holds the contents of the bottle. It is a bottle of pennies. There are methods of the Bottle class that do operations on Bottle values. Study each method. The add method: public Bottle add(Bottle J). it should run the following demo.

import java.util.Scanner; public class BigInt_Add_Sub_Mul_Div_Mod_Demo {

public static void main(String[] args)

{   

BigInt b1;   

BigInt b2;     BigInt b3;

    b1 = new BigInt("-0");

b2 = new BigInt("+0");   

b3 = b1.add(b2);   

System.out.println("1) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b1 = new BigInt("1");   

b2 = new BigInt("1");   

b3 = b1.add(b2);

System.out.println("\n2) sum b3 is " + b1 +" + " + b2 + " = " + b3);   

b3 = b1.subtract(b2);   

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);   

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);   

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);   

b3 = b1.modulus(b2);

   System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

   b1 = new BigInt("-1");

   b2 = new BigInt("1");

b3 = b1.add(b2);   

System.out.println("\n3) sum b3 is " + b1 +" + " + b2 + " = " + b3);   

b3 = b1.subtract(b2);   

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);   

b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);   

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   b3 = b1.modulus(b2);   

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("1");    b2 = new BigInt("-1");    b3 = b1.add(b2);

System.out.println("\n4) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);    System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);    System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);    System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   b3 = b1.modulus(b2);    System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);   

b1 = new BigInt("-1");

b2 = new BigInt("-1");

b3 = b1.add(b2);   

System.out.println("\n5) sum b3 is " + b1 +" + " + b2 + " = " + b3);

   b3 = b1.subtract(b2);   

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);

   System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   b3 = b1.modulus(b2);

   System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("+1");

   b2 = new BigInt("+1");

b3 = b1.add(b2);   

System.out.println("\n6) sum b3 is " + b1 +" + " + b2 + " = " + b3);

   b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

b3 = b1.modulus(b2);

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

   b1 = new BigInt("-100");    b2 = new BigInt("100");

   b3 = b1.add(b2);    System.out.println("\n7) sum b3 is " + b1 +" + " + b2 + " = " + b3);

   b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

   b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

   b3 = b1.divideBy(b2);

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

b3 = b1.modulus(b2);   

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("100");

b2 = new BigInt("-100");

   b3 = b1.add(b2);

System.out.println("\n8) sum b3 is " + b1 +" + " + b2 + " = " + b3);

   b3 = b1.subtract(b2);

   System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);

   System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

   b3 = b1.divideBy(b2);

   System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

b3 = b1.modulus(b2);

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

   b1 = new BigInt("-100");

b2 = new BigInt("-100");

   b3 = b1.add(b2);

System.out.println("\n9) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);   

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);   

b3 = b1.modulus(b2);   

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

   b1 = new BigInt("100");

b2 = new BigInt("100");

b3 = b1.add(b2);   

System.out.println("\n10) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);   

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

   b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);   

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   b3 = b1.modulus(b2);   

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("200");    b2 = new BigInt("-0");    b3 = b1.add(b2);

   System.out.println("\n11) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

   System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

   b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

//b3 = b1.divideBy(b2);

//System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   //b3 = b1.modulus(b2);    //System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("-200");

b2 = new BigInt("-0");

b3 = b1.add(b2);   

System.out.println("\n12) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);   

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

   b3 = b1.multiply(b2);

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

   //b3 = b1.divideBy(b2);   

//System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

//b3 = b1.modulus(b2);

//System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

   b1 = new BigInt("-0");

b2 = new BigInt("200");   

b3 = b1.add(b2);

   System.out.println("\n13) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);   

b3 = b1.multiply(b2);    System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);   

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

b3 = b1.modulus(b2);

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("-0");

b2 = new BigInt("-200");

   b3 = b1.add(b2);

   System.out.println("\n14) sum b3 is " + b1 +" + " + b2 + " = " + b3);   

b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);

   System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

   b3 = b1.divideBy(b2);

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   b3 = b1.modulus(b2);

   System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("37");

b2 = new BigInt("26");

b3 = b1.add(b2);

   System.out.println("\n15) sum b3 is " + b1 +" + " + b2 + " = " + b3);

   b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);   

System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   b3 = b1.modulus(b2);

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("-200111111111111111199999999");

b2 = new BigInt("3333333333333388888888888888888888555555555555555555555555");

b3 = b1.add(b2);   

System.out.println("\n19) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

   System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

   b3 = b1.multiply(b2);

   System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

b3 = b1.modulus(b2);

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

   b1 = new BigInt("66666666666666666666677777777777777777777711111111111111111200");

b2 = new BigInt("-3333333333333333333344444444444");

b3 = b1.add(b2);

System.out.println("\n20) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);   

b3 = b1.multiply(b2);

   System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

b3 = b1.divideBy(b2);

   System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

b3 = b1.modulus(b2);    System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

b1 = new BigInt("-66666666666666666666677777777777777777777711111111111111111200");

b2 = new BigInt("-333333");

b3 = b1.add(b2);   

System.out.println("\n21) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

b3 = b1.multiply(b2);

   System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

   b3 = b1.divideBy(b2);

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

b3 = b1.modulus(b2);

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

   b1 = new BigInt("6666666");

   b2 = new BigInt("3333333333333333333344444444444444444444455555555555555550");

   b3 = b1.add(b2);

System.out.println("\n22) sum b3 is " + b1 +" + " + b2 + " = " + b3);

b3 = b1.subtract(b2);

   System.out.println("difference b3 is " + b1 +" - " + b2 + " = " + b3);

   b3 = b1.multiply(b2);

   System.out.println("product b3 is " + b1 +" * " + b2 + " = " + b3);

   b3 = b1.divideBy(b2);

System.out.println("quotient b3 is " + b1 +" / " + b2 + " = " + b3);

   b3 = b1.modulus(b2);   

System.out.println("modulus b3 is " + b1 +" mod " + b2 + " = " + b3);

}

}