Java get fps

To get the frames per second (FPS) in Java, you can use a combination of the System class and a timer.

Here is an example of how to get the FPS of a Java application:

long startTime = System.nanoTime();
int frameCount = 0;

while (true) {
    // Update and render the frame
    frameCount++;

    // Calculate FPS every second
    if (System.nanoTime() - startTime >= 1_000_000_000) {
        double fps = frameCount / ((System.nanoTime() - startTime) / 1_000_000_000.0);
        System.out.println("FPS: " + fps);
        startTime = System.nanoTime();
        frameCount = 0;
    }
}

This code uses the System.nanoTime method to get the current time in nanoseconds. It then updates and renders a frame, and increments the frameCount variable. Every second, it calculates the FPS by dividing the frameCount by the elapsed time (in seconds) and prints the result. The startTime and frameCount variables are then reset, and the process starts over.

Note that this approach is just one way to measure FPS, and there are other ways you could do it as well. The important thing is to measure the elapsed time and the number of frames in a consistent way, and to do the calculation regularly (e.g. every second).