百度安全验证
百度安全验证
JAVA编程题
//圆类Circleimport java.***.scanner;public class Circle {privat苏单e double radius;public doubl来自e getRadi360问答us() {return radius;}public void setRadius(double radius) {***.radius = radius;}//无参构造函数public Circle(){***.radius=0;}//带参构造函数public Ci其记衡rcle(double r ){***.radius=r;}//获取面积public double getArea(){double r=**笔每*.radius;double area=r*r*3.14;return area;}//获取周长public double getPerimeter(){double perimeter=***.radius*2*3.14;return perimeter; }//打印圆的信息 public void show约新切土专生客(){system.***.println("请输入圆的半径");Scanner sc=new Scanner(***.in);***.setradius(***.nextint());system.***.println("圆的半径"+***.getradius());system.***.println("圆的面积"+***.getarea());system.**英卷操鸡始则亮响*.println("圆的周长"+***.getperimeter());}}//圆柱类public class Cylinder extends Circle {//圆柱高private double height;public double getHeight() {return height;}public void setHeight(double height) {***.height = height;}//构罪体四标故说妈阶造方法public Cylinder (double r, double h){super();***.height=h;***.setra济dius(r);}public doubl绿e getVolume( ) {double volume=***.getarea()****.height;return volume;}//求体积public void showVolume(){system.*针女村口编终律**.println("圆柱的体积"+***.getvolume());}}//主程序入口 public class Test {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubCircle circle=new Circle();***.show();Cylinder cylinder=new Cylinde绝r(2.0,8.5);***.showvolume();}}PS：注释写的很详尽了，求采纳java的编程
public static Integer[] huiwen() { int max = 200; int count = 1; boolean flag = true;//是否是回文 java.util.ListInteger list = new java.util.ArrayListInteger(); while(count = max) { flag = true; int temp = count * count; char[] str = String.valueOf(temp).toCharArray();//将数字分解 int len = str.length; for(int i = 0; i len/2; i++) { if(str[i] != (str[len-1-i]))//将第一位数字与最后一位数字比较，第二位与倒数第二位比较。。。 { flag = false; break; } } if(flag) { list.add(temp); } count++; } return list.toArray(new Integer[]{}); }
