How to correctly output float value in console?

public class Main {
    public static void main(String[] args) {
        GradeBook book = new GradeBook();
        book.addGrade(89f);
        book.addGrade(77.5f);
        book.addGrade(99.5f);

        GradeStatistics stats = book.computeStatistics();

        writeResult("Average", stats.averageScore, 89.5f);
        writeResult("highestScore", stats.highestScore);
        writeResult("lowestScore", (int)stats.lowestScore);
    }

    static void writeResult(String description, float... result) {
        System.out.println(description + " :" + result);
    }

    static void writeResult(String description, int result) {
        System.out.println(description + " :" + result);
    }

}
```java

Console output is

Average :[F@1540e19d
highestScore :[F@677327b6
lowestScore :[F@14ae5a5