public class Test {
public static void main(String[] args) {
//快捷键alt+空格
double pow = Math.pow(2,3);
System.out.println(pow);
boolean a=true;
boolean b=false;
System.out.println(a&&b);//&&和
System.out.println(a||b);//||或
System.out.println(!a&&b);//相反
}
}