var

Example

Use the keyword var to declare variables.

public class Main {
  public int test = 10;

   public static void main(String[] args) {
    var x = 5;
    var main = new Main();
    System.out.println(x);
    System.out.println(main.test);
  }
}

Definition and Usage

The var keyword allows a variable to be initialized without explicitly declaring its type. The variable’s type is inferred from the type of the data assigned to it.

Java 10 introduced the var keyword.