Java code to Verify that the user enters a positive value. (use a while loop)

```java

import java.util.Scanner;

public class PositiveValueChecker {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int number;

System.out.print("Enter a positive value: ");
number = scanner.nextInt();

while (number <= 0) {
System.out.println("Please enter a positive value.");
System.out.print("Enter a positive value: ");
number = scanner.nextInt();
}

System.out.println("You entered a positive value: " + number);

scanner.close();
}
}
```