java interface exercise

Title: Print out all the "daffodils", the so-called "Narcissus number" refers to a three-digit number, its number of cubes and equal to the number itself. For example: 153 is a "narcissus number", because the 153=1 three times the square +5 of the three +3 Times Square.Program Analysis: Use for loop control 100-999 number, each number decomposition out of bits, 10 bits, hundred. Public classTest1 { Public BooleanIsshui (intN) {intx=n/100;//Hundred inty= (n-x*100)/10;//10 Guests int

Also for some time did not write some technical feature articles, today to you a few web front-end entry-level exercises of the article. "Thunder official Propaganda network" design, I believe we usually also used thunder this download tool, so share this piece of technology everyone in a certain program will be interested.First one, the whole ritual feeling.But we must pay attention to, Thunder official Xuan Network is the design is now very popular a split-screen sliding effect technology. Abo

TopicA vampire number have an even number of digits and are formed by multiplying a pair of numbers containing half the number of Digits of the result. The digits is taken from the original number on any order. Pairs of trailing zeroes is not allowed. Examples include:1260 = 21 * 60, 1827 = 21 * 87, 2187 = 27 * 81.Write A program This finds all the 4-digit vampire numbers. (Suggested by Dan Forhan.)1 Public classVampirenumber {2 3 Public Static voidMain (string[] args) {4 intA = 0,

leftday = days% 7; // number of days leftThe code is as follows:Package Lianxiti;Public class Genjutianshujisuanzhoushu {public static void Main (string[] args) { // TODO auto-generated method stub /** Calculates the number of weeks and the number of days remaining depending on the number of days (46)* Hint: int days=46; * int week=days/7; * int leftday=day%7; */ int days=46; int week=days/7; int leftday=days%7; System. out.println ("Total" +days+"weeks" +week+"Number of days lef

Package Com.syswin.first;Import Sun.rmi.runtime.Log;/*** @author Yufeifei* @version November 17, 2017 3:08:24* Command line class, Cmd/terminal command by this type of operation* @param cmdstring Command parameters* */public class Cmdcommand {String osname = System.getproperty ("Os.name");Runtime p = runtime.getruntime ();//Get Current execution environment/** get the current operating system, execute the appropriate command */public void ExecCmd (String cmdstring) {try{if (Osname.tolowercase ()

Topic:Workaround:1 PackageCom.algorithm.java.blueBirdge;2 3 ImportJava.util.Scanner;4 5 Public classLeapyear {6 Public Static voidMain (string[] args) {7Scanner Read =NewScanner (system.in);8 intYear=read.nextint ();9 if(year%4==0 year%100!=0 | | year%400==0 ){TenSYSTEM.OUT.PRINTLN ("Yes"); One } A Else{ -System.out.println ("No"); - } the - } - -}Test results:Test success!Java Blue Bridge Cup--bas

999 999 + Else{ - //Digit the intGewei6=i% 10; * //10 Guests $ intshiwei6= (i% 100)/10;Panax Notoginseng //Hundred - intbaiwei6= (i%1000)/100; the //thousand + intqianwei6= (i/1000)%10; A //million-bit the intwanwei6= (i/10000)% 10; + //100,000 guests - intshiwanwei6=i/100000; $ $

(system.in); System.out.println ("Please enter an English string or decrypt the string:"); String password = scan.nextline ();//Get user input Char[]array = Password.tochararray ();//Get character array for (int i = 0; i Array[i] = (char) (Array[i] ^ 20000);//The XOR of each array element//} System.out.println ("Encrypted or decrypted results are as follows:"); System.out.println (new String (array));//Output key//}//}/** using ternary operators to determine odd and even numbers* Syntax: condi

Java Exercise 10.251.In fact, this problem examines the two same two small one big principle: The method name is the same, the parameter type is sameThe subclass return type is less than or equal to the parent class method return type.Subclass throws exception less than Equals parent class method throws an exception,The subclass access permission is greater than or equal to the parent class method access.2.

Java Process Control Exercise--perpetual calendarTags: Java into the pit tour 0x01. Print inverted triangle and positive triangle public static void main(String[] args) { // TODO Auto-generated method stub int i; int j; /** * 要求：打印一个倒三角以及一个正三角 * 方法：双层循环 **/ for(i=3;i>0;i--) {

Recently, I recalled some of the little exercises that I have practiced in Java. Feeling is quite interesting, in retrospect, think of a lot of learning experience and bumpy, a small exercise to study half a day, treasure the past, face the future. The following contribution code, Java console input digital output multiplication table (code