创建一个类。添加以下方法: min，max，isEven，square。在main方法中，调用这些方法

public class NumberUtils {
    public int min(int a, int b) {
        return Math.min(a, b);
    }
    
    public int max(int a, int b) {
        return Math.max(a, b);
    }
    
    public boolean isEven(int number) {
        return number % 2 == 0;
    }
    
    public int square(int number) {
        return number * number;
    }
    
    public static void main(String[] args) {
        NumberUtils utils = new NumberUtils();
        
        int minResult = utils.min(5, 3);
        System.out.println("Min: " + minResult);
        
        int maxResult = utils.max(5, 3);
        System.out.println("Max: " + maxResult);
        
        boolean isEvenResult = utils.isEven(4);
        System.out.println("Is Even: " + isEvenResult);
        
        int squareResult = utils.square(3);
        System.out.println("Square: " + squareResult);
    }
}