值未计算

Question

我正在尝试设计一种简单的方法，但是由于某些原因而无法计算值：

public static void animateBattery()
{
    float boxPercent = (58/100);
    System.out.println( "boxPercent "+ boxPercent);

    int batteryPercent = (int) Math.round(storageLimit / 100 * elecStored);
    setBatteryColor(batteryPercent);
    System.out.println( "batteryPercent "+ batteryPercent);

    int storedPercent = (int) Math.round(boxPercent * batteryPercent);
    System.out.println( "storedPercent "+ storedPercent);

    System.out.println( "Another demonstration " + 58/100);

    System.out.println( "One more " + 100);

    batteryColor.setBounds(890, 405 + (58 - storedPercent), 81, storedPercent);
    frame.getContentPane().add(batteryColor);
}

输出：

boxPercent 0.0
batteryPercent 0
storedPercent 0
Another demonstration 0
One more 100

希望我提供了足够的代码来解决问题。很抱歉成为菜鸟。任何帮助将不胜感激！