1import java.util.Scanner;
2
3
4public class Calculator {
5
6
7 public static void main(String[] args) {
8
9 Scanner kb = new Scanner(System.in);
10
11 System.out.println("Simple Calculator");
12
13 System.out.println("\nHere are your options:");
14 System.out.println("\n1. Addition");
15 System.out.println("2. Subtraction");
16 System.out.println("3. Division");
17 System.out.println("4. Multiplication");
18
19 System.out.print("\nWhat would you like to do?: ");
20 int choice = kb.nextInt();
21 System.out.println();
22
23
24 if (choice == 1){
25 addition();
26 }
27 else if (choice == 2){
28 subtraction();
29 }
30 else if (choice == 3){
31 division();
32 }
33 else if (choice == 4){
34 multiplication();
35 }
36
37 System.out.println();
38 kb.close();
39 }
40
41 public static void addition(){
42
43 int nOne, nTwo;
44 Scanner kb = new Scanner(System.in);
45
46 System.out.println("Addition");
47
48 System.out.print("\nFirst Number: ");
49 nOne = kb.nextInt();
50
51 System.out.print("\nSecond Number: ");
52 nTwo = kb.nextInt();
53
54 kb.close();
55 System.out.println("\nSum: " + nOne + " + " + nTwo + " = " + (nOne + nTwo));
56 }
57
58 public static void subtraction(){
59 int nOne, nTwo;
60 Scanner kb = new Scanner(System.in);
61
62 System.out.println("Subtraction");
63
64 System.out.print("\nFirst Number: ");
65 nOne = kb.nextInt();
66
67 System.out.print("\nSecond Number: ");
68 nTwo = kb.nextInt();
69
70 kb.close();
71 System.out.println("\nSum: " + nOne + " - " + nTwo + " = " + (nOne - nTwo));
72 }
73
74 public static void division(){
75 int nOne, nTwo;
76 Scanner kb = new Scanner(System.in);
77
78 System.out.println("Division");
79
80 System.out.print("\nFirst Number: ");
81 nOne = kb.nextInt();
82
83 System.out.print("\nSecond Number: ");
84 nTwo = kb.nextInt();
85
86 kb.close();
87 System.out.println("\nSum: " + nOne + " / " + nTwo + " = " + (nOne / nTwo));
88 }
89
90 public static void multiplication(){
91 int nOne, nTwo;
92 Scanner kb = new Scanner(System.in);
93
94 System.out.println("Multiplication");
95
96 System.out.print("\nFirst Number: ");
97 nOne = kb.nextInt();
98
99 System.out.print("\nSecond Number: ");
100 nTwo = kb.nextInt();
101
102 kb.close();
103 System.out.println("\nSum: " + nOne + " x " + nTwo + " = " + (nOne * nTwo));
104 }
105}