One Commit at a Time ! Series - 24

JAVA

public class Main {
  public static void main(String[] args) {
    int x = 5;
    --x;
    System.out.println(x);
  }
}

Explanation :

This Java program demonstrates the use of the decrement operator (--) to decrease the value of a variable.

Here is a step-by-step breakdown:

1. int x = 5;

2. Declares an integer variable named x and initializes it with the value 5.

3. --x;

4. Applies the pre-decrement operator to x. This subtracts 1 directly from the current value of x.

5. Since x was 5, it now becomes 4. (Because it is placed before the variable, it decrements the value immediately).

6. System.out.println(x);

7. Prints the current value of x (4) to the console.

Output

4

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SQL

SELECT Example Without DISTINCT
If you omit the DISTINCT keyword, the SQL statement returns the "Country" value from all the records of the "Customers" table:

Example

SELECT Country FROM Customers;

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References :

https://www.w3schools.com/sql/sql_distinct.asp
https://www.w3schools.com/java/java_examples.asp