semper的博客

用于评价商品的五星评分条，我也是在其他地方看到，觉得是一个简单有用的控件，拿来和大家分享

实现两个viewcontroller之间的界面切换，有动画效果

实现tableview的圆角及阴影效果，内有图片展示。

mport java.math.*; class BigIntegerExample { public static void main(String args[]) { BigInteger n1=new BigInteger("987654321987654321987654321"), n2=new BigInteger("123456789123456789123456789"), result=null; result=n1.add(n2);//n1和n2做加法运算 System.out.println("和:"+result.toString()); result=n1.subtract(n2);//n1和n2做减法运算 System.out.println("差:"+result.toString()); result=n1.multiply(n2); //n1和n2做乘法运算 System.out.println("积:"+result.toString()); result=n1.divide(n2);//n1和n2做除法运算 System.out.println("商:"+result.toString()); BigInteger m=new BigInteger("1968957"), COUNT=new BigInteger("0"), ONE=new BigInteger("1"), TWO=new BigInteger("2"); System.out.println(m.toString()+"的因子有:"); for(BigInteger i=TWO;i.compareTo(m)<0;i=i.add(ONE)) { if((n1.remainder(i).compareTo(BigInteger.ZERO))==0) { COUNT=COUNT.add(ONE); System.out.print(" "+i.toString()); } } System.out.println(""); System.out.println(m.toString()+"一共有"+COUNT.toString()+"个因子"); } }

import java.util.*; public class 解析身份证号码的生日 { public static void main(String[] args){ Scanner scanner = new Scanner(System.in); System.out.println("请输入你的身份证号码："); while(scanner.hasNext()){ String id = scanner.next(); if(id.equals("exit")) break; if(id.length() == 18){ String year = id.substring(6,10); String month = id.substring(10,12); String day = id.substring(12,14); System.out.println("您的生日是：" + year + "-" + month + "-" + day); } else{ System.out.println("身份证号码错误，请重新输入！"); } } } }

import java.util.Scanner; class Rectangle{ double length,width; Rectangle(){} Rectangle(double alength,double awidth){ length=alength; width=awidth; } public double perimeter(){ return (length+width)*2; } public double area(){ return length*width; } }

import java.math.*; class BigIntegerExample { public static void main(String args[]) { BigInteger n1=new BigInteger("987654321987654321987654321"), n2=new BigInteger("123456789123456789123456789"), result=null; result=n1.add(n2);//n1和n2做加法运算 System.out.println("和:"+result.toString()); result=n1.subtract(n2);//n1和n2做减法运算 System.out.println("差:"+result.toString()); result=n1.multiply(n2); //n1和n2做乘法运算 System.out.println("积:"+result.toString()); result=n1.divide(n2);//n1和n2做除法运算 System.out.println("商:"+result.toString()); BigInteger m=new BigInteger("1968957"), COUNT=new BigInteger("0"), ONE=new BigInteger("1"), TWO=new BigInteger("2"); System.out.println(m.toString()+"的因子有:"); for(BigInteger i=TWO;i.compareTo(m)<0;i=i.add(ONE)) { if((n1.remainder(i).compareTo(BigInteger.ZERO))==0) { COUNT=COUNT.add(ONE); System.out.print(" "+i.toString()); } } System.out.println(""); System.out.println(m.toString()+"一共有"+COUNT.toString()+"个因子"); } }