Here is an example Java program that demonstrates how to convert a long variable to an int variable:

public class LongToIntExample {
    public static void main(String[] args) {
        long longValue = 123456789L;
        int intValue = (int) longValue;
        System.out.println("Long value: " + longValue);
        System.out.println("Int value: " + intValue);
    }
}

In this program, we create a long variable longValue and initialize it with the value 123456789L. We then cast this value to an int using the (int) cast operator and assign the result to the variable intValue.

Finally, we print the values of longValue and intValue to the console using the System.out.println() method.

Note that when you cast a long value to an int, you may lose precision if the long value is too large to be represented as an int. In such cases, the result of the cast may not be the same as the original long value.