Introduction to Arithmetic Operators

Arithmetic operators are used in mathematical expressions in the same way that they are used in algebra.
The following table lists the arithmetic operators:

The operands of the arithmetic operators must be of a numeric type. You cannot use them on boolean types, but you can use them on char types, since the char type in Java is, essentially, a subset of int.

Syntax

operand1 = operand2 + operand3; // Use to add values
operand1 = operand2 - operand3; // Use to subtract values
operand1 = operand2 * operand3; // Use to multiply values
operand1 = operand2 / operand3; // Use to divide values
operand1 = operand2 % operand3; // Use to get modulus
operand++; // Use to add 1 in operand
operand1 += operand2 ;  // Use to add operand2 in operand1
operand1 -= operand2 ;  // Use to subtract operand2 from operand1
operand1 *= operand2 ;  // Use to multiple operand2 with operand1
operand1 /= operand2 ; // Use to divide operand2 with operand1
operand1 %= operand2 ; // Use to get modulus of operand1
operand--;  // Use to decrement of 1 from operand value

Example

1.  /**
2.  * @(#)ArithmeticOperatorDemo.java
3.  *
4.  *
5.  * @author
6.  * @version 1.00 2009/11/2
7.  */
8.
9.  public class ArithmeticOperatorDemo {
10.        
11.    /**
12.      * Creates a new instance of ArithmeticOperatorDemo.
13.      */
14.      public ArithmeticOperatorDemo() {
15.      }
16.    
17.      /**
18.       * @param args the command line arguments
19.       */
20.      public static void main(String[] args) {
21.        // TODO code application logic here
22.        
23.        int a = 25;
24.        int b = 10;
25.        
26.       int c = a + b;
27.        
28.        System.out.println("Addition: " + c );
29.        
30.        int d = a - b;
31.        
32.        System.out.println("Subtraction: " + d );
33.        
34.
35.        int e = a * b;
36.        
37.        System.out.println("Multiplication: " + e );
38.
39.
40.        int f = a / b;
41.        
42.        System.out.println("Division: " + f );
43.        
44.
45.        int g = a % b;
46.        
47.        System.out.println("Modulus: " + g );
48.        
49.
50.        a++;
51.        
52.        System.out.println("Increment: " + a );
53.
54.
55.        a--;
56.        
57.        System.out.println("Decrement: " + a );
58.        
59.        a += b;
60.        
61.        System.out.println("Addition assignment: " + a );
62.
63.
64.        a -= b;
65.        
66.        System.out.println("Subtraction assignment: " + a );
67.
68.        a *= b;
69.        
70.        System.out.println("Multiplication assignment: " + a );
71.
72.
73.        a /= b;
74.        
75.        System.out.println("Division assignment: " + a );
76.
77.        a %= b;
78.        
79.        System.out.println("Modulus assignment: " + a );
80.    
81.        a--;
82.        
83.        System.out.println("Decrement assignment: " + a );
84.    
85.    }
86. }

Output

Addition: 35
Subtraction: 15
Multiplication: 250
Division: 2
Modulus: 5
Increment: 26
Decrement: 25
Addition assignment: 35
Subtraction assignment: 25
Multiplication assignment: 250
Division assignment: 25
Modulus assignment: 5
Decrement assignment: 4