文章列表
求质数
package com.baidu.zhidao;
public class PrimeNumbers {
private static int count = 0;
public static void main(String[] args) {
for (int i = 101; i < 200; i++) {
boolean flag = true;
double num = Math.sqrt(i);
for(int j = 2;j<num;j++){
if(i%j==0){
fl ...
求一个数的质因素
package com.baidu.zhidao;
import java.util.Scanner;
public class PrimeFactor {
private static int k = 2;
public static void main(String[] args) {
while (true) {
try {
System.out.print("Type in a number(0 to Exit): ");
Scanner scanner = new ...
判断是否是回文数或字符串
package com.baidu.zhidao;
import java.util.Scanner;
public class Palindrom {
public static void main(String[] args) {
while (true) {
try {
System.out.print("Waiting for type in:");
boolean flag = true;
Scanner s = new Scanner(System.in) ...
输入一个数，判断位数并倒序输出
package com.baidu.zhidao;
import java.util.Scanner;
public class InvertedOrder {
public static void main(String[] args) {
while (true) {
try {
System.out.print("Type in a number:");
String str = "";
Scanner s = new Scanne ...
求水仙花数。
package com.baidu.zhidao;
public class NarcissusNumber {
public static void main(String[] args) {
int n,nn,nnn;
for(int i = 100;i<1000;i++){
n = i%10;
nn = (i/10)%10;
nnn = i/100;
if(i == n*n*n+nn*nn*nn+nnn*nnn*nnn){
System.out.print("Narci ...
可统计你录入的数字，字母，空格，符号。
package com.baidu.zhidao;
import java.util.Scanner;
public class CharacterStatistics {
public static void main(String[] args) {
while (true) {
try {
int numberCount = 0,charCount = 0,spaceCount = 0,otherCount = 0;
System.out.println("Wai ...
杨辉三角
不带空格格式化的：
package com.baidu.zhidao;
public class Test {
public static void main(String[] args) {
final int Row = 6;
int yh[][] = new int[Row][Row];
for (int i = 0; i < Row; i++) {
yh[i][0] = 1;
yh[i][i] = 1;
}
for (int i = 2; i < Row; i++) {
for ( ...
package com.baidu.zhidao;
import java.util.Scanner;
public class GCD_and_LCM {
private static int max, min, temp;
public static void main(String[] args) {
while (true) {
try {
int a, b, gcd, lcm;
System.out.println("Pleasy type in two number! Type in 0 to e ...