java編程趣味
《Java趣味編程100例》是2013年清華大學出版社出版的圖書，作者是衡友躍。
㈡ java編程題 有趣的數
就你出的題來說，沒看懂，就java來說表示起始2，一直到N做循環
import java.util.Scanner;
public class FunNumber {
public static void main(String[] args) {
Scanner fin = new Scanner(System.in);
int N = fin.nextInt();
long i = (long)Math.pow(10, N-1);
long j = (long)Math.pow(10, N);
long count = 0;
for(;i<j;i++){
if(isFun(i,N)) {
count++;
System.out.println(i);
}
}
System.out.println("Count % 1000000007 = " + count%1000000007);
}
public static boolean isFun(long num,int N){
boolean[] num_exist = new boolean[4];
for(;N>0;N--){
int i = (int)(num%Math.pow(10,N)/Math.pow(10,N-1));
switch(i){
case 0:
num_exist[0] = true;
//0必須都在1前
if(num_exist[1]){
return false;
}
break;
case 1:
num_exist[1] = true;
break;
case 2:
num_exist[2] = true;
//2必須都在3前
if(num_exist[3]){
return false;
}
break;
case 3:
num_exist[3] = true;
break;
default:
//不只包含0123
return false;
}
}
//0123至少出現1次
if(num_exist[0]&&num_exist[1]&&num_exist[2]&&num_exist[3]){
return true;
}
return false;
}
}
㈢ Java實現的趣味游戲
連連看java源代碼
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class lianliankan implements ActionListener
{
JFrame mainFrame; //主面板
Container thisContainer;
JPanel centerPanel,southPanel,northPanel; //子面板
JButton diamondsButton[][] = new JButton[6][5];//游戲按鈕數組
JButton exitButton,resetButton,newlyButton; //退出，重列，重新開始按鈕
JLabel fractionLable=new JLabel("0"); //分數標簽
JButton firstButton,secondButton; //分別記錄兩次被選中的按鈕
int grid[][] = new int[8][7];//儲存游戲按鈕位置
static boolean pressInformation=false; //判斷是否有按鈕被選中
int x0=0,y0=0,x=0,y=0,fristMsg=0,secondMsg=0,validateLV; //游戲按鈕的位置坐標
int i,j,k,n;//消除方法控制
public void init(){
mainFrame=new JFrame("JKJ連連看");
thisContainer = mainFrame.getContentPane();
thisContainer.setLayout(new BorderLayout());
centerPanel=new JPanel();
southPanel=new JPanel();
northPanel=new JPanel();
thisContainer.add(centerPanel,"Center");
thisContainer.add(southPanel,"South");
thisContainer.add(northPanel,"North");
centerPanel.setLayout(new GridLayout(6,5));
for(int cols = 0;cols < 6;cols++){
for(int rows = 0;rows < 5;rows++ ){
diamondsButton[cols][rows]=new JButton(String.valueOf(grid[cols+1][rows+1]));
diamondsButton[cols][rows].addActionListener(this);
centerPanel.add(diamondsButton[cols][rows]);
}
}
exitButton=new JButton("退出");
exitButton.addActionListener(this);
resetButton=new JButton("重列");
resetButton.addActionListener(this);
newlyButton=new JButton("再來一局");
newlyButton.addActionListener(this);
southPanel.add(exitButton);
southPanel.add(resetButton);
southPanel.add(newlyButton);
fractionLable.setText(String.valueOf(Integer.parseInt(fractionLable.getText())));
northPanel.add(fractionLable);
mainFrame.setBounds(280,100,500,450);
mainFrame.setVisible(true);
}
public void randomBuild() {
int randoms,cols,rows;
for(int twins=1;twins<=15;twins++) {
randoms=(int)(Math.random()*25+1);
for(int alike=1;alike<=2;alike++) {
cols=(int)(Math.random()*6+1);
rows=(int)(Math.random()*5+1);
while(grid[cols][rows]!=0) {
cols=(int)(Math.random()*6+1);
rows=(int)(Math.random()*5+1);
}
this.grid[cols][rows]=randoms;
}
}
}
public void fraction(){
fractionLable.setText(String.valueOf(Integer.parseInt(fractionLable.getText())+100));
}
public void reload() {
int save[] = new int[30];
int n=0,cols,rows;
int grid[][]= new int[8][7];
for(int i=0;i<=6;i++) {
for(int j=0;j<=5;j++) {
if(this.grid[i][j]!=0) {
save[n]=this.grid[i][j];
n++;
}
}
}
n=n-1;
this.grid=grid;
while(n>=0) {
cols=(int)(Math.random()*6+1);
rows=(int)(Math.random()*5+1);
while(grid[cols][rows]!=0) {
cols=(int)(Math.random()*6+1);
rows=(int)(Math.random()*5+1);
}
this.grid[cols][rows]=save[n];
n--;
}
mainFrame.setVisible(false);
pressInformation=false; //這里一定要將按鈕點擊信息歸為初始
init();
for(int i = 0;i < 6;i++){
for(int j = 0;j < 5;j++ ){
if(grid[i+1][j+1]==0)
diamondsButton[i][j].setVisible(false);
}
}
}
public void estimateEven(int placeX,int placeY,JButton bz) {
if(pressInformation==false) {
x=placeX;
y=placeY;
secondMsg=grid[x][y];
secondButton=bz;
pressInformation=true;
}
else {
x0=x;
y0=y;
fristMsg=secondMsg;
firstButton=secondButton;
x=placeX;
y=placeY;
secondMsg=grid[x][y];
secondButton=bz;
if(fristMsg==secondMsg && secondButton!=firstButton){
xiao();
}
}
}
public void xiao() { //相同的情況下能不能消去。仔細分析，不一條條注釋
if((x0==x &&(y0==y+1||y0==y-1)) || ((x0==x+1||x0==x-1)&&(y0==y))){ //判斷是否相鄰
remove();
}
else{
for (j=0;j<7;j++ ) {
if (grid[x0][j]==0){ //判斷第一個按鈕同行哪個按鈕為空
if (y>j) { //如果第二個按鈕的Y坐標大於空按鈕的Y坐標說明第一按鈕在第二按鈕左邊
for (i=y-1;i>=j;i-- ){ //判斷第二按鈕左側直到第一按鈕中間有沒有按鈕
if (grid[x][i]!=0) {
k=0;
break;
}
else{ k=1; } //K=1說明通過了第一次驗證
}
if (k==1) {
linePassOne();
}
}
if (y<j){ //如果第二個按鈕的Y坐標小於空按鈕的Y坐標說明第一按鈕在第二按鈕右邊
for (i=y+1;i<=j ;i++ ){ //判斷第二按鈕左側直到第一按鈕中間有沒有按鈕
if (grid[x][i]!=0){
k=0;
break;
}
else { k=1; }
}
if (k==1){
linePassOne();
}
}
if (y==j ) {
linePassOne();
}
}
if (k==2) {
if (x0==x) {
remove();
}
if (x0<x) {
for (n=x0;n<=x-1;n++ ) {
if (grid[n][j]!=0) {
k=0;
break;
}
if(grid[n][j]==0 && n==x-1) {
remove();
}
}
}
if (x0>x) {
for (n=x0;n>=x+1 ;n-- ) {
if (grid[n][j]!=0) {
k=0;
break;
}
if(grid[n][j]==0 && n==x+1) {
remove();
}
}
}
}
}
for (i=0;i<8;i++ ) { //列
if (grid[i][y0]==0) {
if (x>i) {
for (j=x-1;j>=i ;j-- ) {
if (grid[j][y]!=0) {
k=0;
break;
}
else { k=1; }
}
if (k==1) {
rowPassOne();
}
}
if (x<i) {
for (j=x+1;j<=i;j++ ) {
if (grid[j][y]!=0) {
k=0;
break;
}
else { k=1; }
}
if (k==1) {
rowPassOne();
}
}
if (x==i) {
rowPassOne();
}
}
if (k==2){
if (y0==y) {
remove();
}
if (y0<y) {
for (n=y0;n<=y-1 ;n++ ) {
if (grid[i][n]!=0) {
k=0;
break;
}
if(grid[i][n]==0 && n==y-1) {
remove();
}
}
}
if (y0>y) {
for (n=y0;n>=y+1 ;n--) {
if (grid[i][n]!=0) {
k=0;
break;
}
if(grid[i][n]==0 && n==y+1) {
remove();
}
}
}
}
}
}
}
public void linePassOne(){
if (y0>j){ //第一按鈕同行空按鈕在左邊
for (i=y0-1;i>=j ;i-- ){ //判斷第一按鈕同左側空按鈕之間有沒按鈕
if (grid[x0][i]!=0) {
k=0;
break;
}
else { k=2; } //K=2說明通過了第二次驗證
}
}
if (y0<j){ //第一按鈕同行空按鈕在與第二按鈕之間
for (i=y0+1;i<=j ;i++){
if (grid[x0][i]!=0) {
k=0;
break;
}
else{ k=2; }
}
}
}
public void rowPassOne(){
if (x0>i) {
for (j=x0-1;j>=i ;j-- ) {
if (grid[j][y0]!=0) {
k=0;
break;
}
else { k=2; }
}
}
if (x0<i) {
for (j=x0+1;j<=i ;j++ ) {
if (grid[j][y0]!=0) {
k=0;
break;
}
else { k=2; }
}
}
}
public void remove(){
firstButton.setVisible(false);
secondButton.setVisible(false);
fraction();
pressInformation=false;
k=0;
grid[x0][y0]=0;
grid[x][y]=0;
}
public void actionPerformed(ActionEvent e) {
if(e.getSource()==newlyButton){
int grid[][] = new int[8][7];
this.grid = grid;
randomBuild();
mainFrame.setVisible(false);
pressInformation=false;
init();
}
if(e.getSource()==exitButton)
System.exit(0);
if(e.getSource()==resetButton)
reload();
for(int cols = 0;cols < 6;cols++){
for(int rows = 0;rows < 5;rows++ ){
if(e.getSource()==diamondsButton[cols][rows])
estimateEven(cols+1,rows+1,diamondsButton[cols][rows]);
}
}
}
public static void main(String[] args) {
lianliankan llk = new lianliankan();
llk.randomBuild();
llk.init();
}
}
//old 998 lines
//new 318 lines
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