Austin code - Pastebin.com

import java.util.Scanner ;

class Main

{

public static void main(String args[])

{

Scanner sc = new Scanner(System.in) ;

int arOPT=0;

int volOPT=0 ;

System.out.println("=====Austin's Maths Dockyard // Made by Austin Bara=====");

System.out.println("==================== Release 1.0 ====================");

System.out.println(" ");

System.out.println("It is a program which calculates anything in a sec :>");

System.out.println("and it also shut downs itself after excuting.");

System.out.println(" ");

System.out.println("=====Options=====");

System.out.println("1. Addition");

System.out.println("2. Subtraction");

System.out.println("3. Multiplication");

System.out.println("4. Division");

System.out.println("5 Area");

System.out.println("6. Volume");

System.out.println(" ");

System.out.println("Other options comming soon so stay tuned. ");

System.out.println(" ");

System.out.print("Select your option: ");

int OPT = sc.nextInt() ;

if (OPT == 1)

{

System.out.println("You have selected Addition");

System.out.println(" ");

System.out.print("Enter your first number: ");

int a1 = sc.nextInt() ;

System.out.print("Enter your second number: ");

int a2 = sc.nextInt() ;

int sum = a1 + a2 ;

System.out.println("Sum: "+sum);

}

else if (OPT==2)

{

System.out.println("You have selected Subtraction");

System.out.println(" ");

System.out.print("Input your first number: ");

int s1 = sc.nextInt();

System.out.print("Input your second number: ");

int s2 = sc.nextInt();

int diff = s1 - s2 ;

System.out.println("Difference: "+diff);

}

else if (OPT == 3)

{

System.out.println("You have selected Multiplication");

System.out.println(" ");

System.out.print("Input your first number: ");

int m1 = sc.nextInt() ;

System.out.print("Input your second number: ");

int m2 = sc.nextInt() ;

int pro = m1 * m2 ;

System.out.println("Product: "+pro);

}

else if (OPT == 4)

{

System.out.println("You have selected Division");

System.out.println(" ");

System.out.print("Input your first number: ");

int d1 = sc.nextInt();

System.out.print("Input your second number: ");

int d2 = sc.nextInt();

int quo = d1/d2 ;

System.out.println("Quotient: "+quo);

}

else if (OPT == 5)

{

System.out.println(" ");

System.out.println("You have selected Area.");

System.out.println(" ");

System.out.println("=====Options=====");

System.out.println("1. Square");

System.out.println("2. Rectangle");

System.out.println("3. Circle");

System.out.print("Select your option: ");

arOPT = sc.nextInt();

switch (arOPT){

case 1 : System.out.println("You have selected Square inside the Area category.");

System.out.println(" ");

System.out.print("Input the length of a side: ");

int sq = sc.nextInt();

int sqar = sq * sq ;

System.out.println("The area of the square: "+sqar);

break;

case 2 : System.out.println("You have selected Rectangle inside the Area category.");

System.out.println(" ");

System.out.print("Input the length of the rectangle: ");

int recl = sc.nextInt();

System.out.print("Input the breath of the rectangle: ");

int recb = sc.nextInt();

int recar = recl * recb;

System.out.println("The area of the rectangle: "+recar);

break;

case 3 : System.out.println("You have selected Circle inside the Area category.");

System.out.println(" ");

System.out.print("Input the radius of the circle: ");

double circleR = sc.nextDouble();

double cirar = 3.14 * r * r ;

System.out.println("The area of the circle: "+cirar);

break;

default:System.out.println(" ");

System.out.println("Invialid Selection");

System.out.println("Error code 422: Abnormal Shutdown.");

}

else if (OPT == 6)

{

System.out.println(" ");

System.out.println("You have selected Volume.");

System.out.println(" ");

System.out.println("=====Options=====");

System.out.println("1. Cube");

System.out.println("2. Cuboid");

System.out.print("Select your option: ");

volOPT = sc.nextInt();

switch (volOPT){

case 1 : System.out.println("You have selected Cube inside the Volume category.");

System.out.println(" ");

System.out.print("Input the length of a edge: ");

int ed = sc.nextInt();

int cuVOL = ed * ed * ed ;

System.out.println("The volume of the square: "+cuVOL);

break;

case 2 : System.out.println("You have selected Cuboid inside the Volume category.");

System.out.println(" ");

System.out.print("Input the length of the cuboid: ");

int cuL = sc.nextInt();

System.out.print("Input the breath of the cuboid: ");

int cuB = sc.nextInt();

System.out.print("Input the height of the cuboid: ");

int cuH = sc.nextInt();

int cubVOL = cuL * cuB * cuH ;

System.out.println("The volume of the cuboid: "+cubVOL);

break;

default: System.out.println(" ");

System.out.println("Invialid Selection");

System.out.println("Error code 422: Abnormal Shutdown.");

}

else

{

System.out.println(" ");

System.out.println("Invialid Selection");

System.out.println("Error code 422: Abnormal Shutdown.");

}