Java Program to Illustrate Use of Pre and Post Increment and Decrement Operators

This is a Java Program to Illustrate Use of Pre and Post Increment and Decrement Operators.The increment (++) operator increases its operand by one. The decrement (–) operator decreases its operand by one.

Enter an integer as input. After that we perform the pre and post increment and decrement operators on the given integer and hence get the respective ouput.

Here is the source code of the Java Program to Illustrate Use of Pre and Post Increment and Decrement Operators.The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

```
import java.util.Scanner;
```
```
public class Increment_Decrement
```
```
{
```

    public static void main(String[] args)

```
    {
```
```
        int a, b, c, d, e;
```

        Scanner s = new Scanner(System.in);

        System.out.print("Enter any integer a:");

```
        a = s.nextInt();
```
```
        b = ++a;
```

        System.out.println("Result after Pre Increment a:"+a);

        System.out.println("Result after Pre Increment b:"+b);

```
        c = a++;
```

        System.out.println("Result after Pre Increment a:"+a);

        System.out.println("Result after Post Increment c:"+c);

```
        d = --a;
```

        System.out.println("Result after Pre Increment a:"+a);

        System.out.println("Result after Pre Decrement d:"+d);

```
        e = a--;
```

        System.out.println("Result after Pre Increment a:"+a);

        System.out.println("Result after Post Decrement e:"+e);

```
    }   
```
```
}
```

Output:

$ javac Increment_Decrement.java
$ java  Increment_Decrement
 
Enter any integer a:12
Result after Pre Increment a:13
Result after Pre Increment b:13
Result after Pre Increment a:14
Result after Post Increment c:13
Result after Pre Increment a:13
Result after Pre Decrement d:13
Result after Pre Increment a:12
Result after Post Decrement e:13

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