/*1.運用一維數組設計一個可計算多個數的平均的程序*/
?
//?public static int i=0;//for循環計數變量
//?public static float Number[] = new float[20];//存儲數據的浮點數數組
//?public static float Summary;//數據總和變量
//?public static float Average;//數據平均變量
?
//?public static void main(String[] args) {
//?? TODO Auto-generated method stub
//??System.out.println("HELLO JAVA...");
//??Summary = 0;//數據總和變量初值化
//??System.out.println("Please input the number of data:");//讀入最大可輸入數據個數
//??ConsoleReader console = new ConsoleReader(System.in);
//??int Max = console.readInt();
//??System.out.println("");
//??
//??if(Max <= 20){//決定最大可輸入數
//???for(i=0;i<Max;i++){
//????System.out.println("Please input a number:");
//????Number[i] = (float)console.readDouble();
//????Summary += Number[i];
//???}
//???Average = Summary/Max;//平均值=總和/個數
//???System.out.println("The average is:"+Average);
//??}else{//如果輸入數字超出范圍
//???System.out.println("Please input a number less than 20.");
//??}
//?}
?/*2.運用一維數組設計一個簡易的員工工資管理系統(具有查詢與修改功能)*/
?/*
? * public static int[] Employee={27000,27111,27222,27333,27444,27555,27666,27777,27888,27999};
?public static int Index;//數組下標變量
?public static int NewSalary;//修改後工資變量
?public static int Selection;//用戶選項變量
?
? boolean Flag = false;
??while(!Flag){
???//用戶菜單
???System.out.println("++++++++++++++++++++++++++++++++++++++");
???System.out.println("1.Display employee salary =");
???System.out.println("2.Modify employee salary =");
???System.out.println("3.Quit");
???System.out.println("++++++++++++++++++++++++++++++++++++++");
???System.out.println("Please input your choose:");//讀取用戶選項
???ConsoleReader console = new ConsoleReader(System.in);
???int Selection = console.readInt();
???if(Selection ==1 || Selection ==2){
????System.out.println("Please input the employee number:");//讀取員工編號
????Index = console.readInt();
????if(Index <10){
?????System.out.println("**Employee Number is"+Index);
?????System.out.println("**The Salary is"+Employee[Index]);
????}else{
?????System.out.println("##The error employee number!");
?????Flag = true;
????}
???}
???switch(Selection){
???case 1:
????break;
???case 2:
????System.out.println("**Please enter new Salary:");//修改後的員工工資
????NewSalary = console.readInt();
????System.out.println("");
????Employee[Index]=NewSalary;
????break;
???case 3:
????Flag = true;
????System.out.println("You leave from System.");
????break;
???}
???System.out.println("");
??}
? */
?/*3.運用一維數組設計一個可存儲員工工資讓用戶輸入工資，然後輸出員工編號的程序*/
?/*
? public static int[] Employee={27000,27111,27222,27333,27444,27555,27666,27777,27888,27999};//預設10筆資料
?public static int Salary;//用戶輸入工資變量
?public static int Counter=0;//數據計數變量
? int i;//for循環計數變量
??System.out.println("Please input the employee salary:");
??ConsoleReader console = new ConsoleReader(System.in);
??Salary = console.readInt();
??for(i=0;i<10;i++){//數組遍歷
???if(Salary == Employee[i]){
????System.out.println("Number"+i+"Employee's salary is"+Salary+"!");
????Counter++;
???}
??}
???if(Counter == 0){
????System.out.println("No employee's salary is"+Salary+"!!");
???}else{
????System.out.println("Have"+Counter+"employee salary is"+Salary+"!!");
???}
? */
?/*4.設計一個可容納40位數的求n!的程序*/
?/*
? int Data[] = new int[40];
??int Digit;
??int i,j,r,k;
??int N;
??for(i=1;i<40;i++){
???Data[i]=0;
??}
??Data[0]=1;
??Data[1]=1;
??Digit = 1;
??System.out.println("Enter a number what you want to calculus:");
??ConsoleReader console = new ConsoleReader(System.in);
??N = console.readInt();
??for(i=1;i<N+1;i++){
???for(j=1;j<Digit+1;j++){
????Data[j]*=i;
???}
???for(j=1;j<Digit+1;j++){
????if(Data[j]>10){
?????for(r=1;r<Digit+1;r++){
??????if(Data[Digit]>10){
???????Digit ++;
??????}
??????Data[r+1] += Data[r]/10;
??????Data[r]=Data[r]%10;
?????}
????}
???}
???System.out.print(i+"!=");
???for(k=Digit;k>0;k--){
????System.out.print(Data[k]);
???}
???System.out.println("");
??}
? */
?/*設計從二維轉一維數組(行轉列或列轉行)*/
?/*
? int[][] Data = {{1,2,3},{4,5,6},{7,8,9},{0,10,11}};
??int RowData[] = new int[12];//存儲以行為主的數組
??int ColData[] = new int[12];//存儲以列為主的數組
??int i,j;
??System.out.println("The Data of two dimensional array:");
??for(i=0;i<4;i++){
???for(j=0;j<3;j++){
????System.out.println(" "+Data[i][j]+" ");
????System.out.println("");
???}
??}
??for(i=0;i<4;i++){
???for(j=0;j<3;j++){
????RowData[i*3+j] = Data[i][j];
???}
??}
??System.out.println("");
??System.out.println("The Row major Martrix:");
??for(i=0;i<12;i++){
???System.out.println(" "+RowData[i]+" ");
??}
??System.out.println("");
??for(i=0;i<4;i++){
???for(j=0;j<3;j++){
????ColData[j*4+i] = Data[i][j];
???}
??}
??System.out.println("");
??System.out.println("The Column Major Matrix:");
??for(i=0;i<12;i++){
???System.out.println(" "+ColData[i]+" ");
??}
??System.out.println("");
? */
?/*特殊的數組(稀疏數組)*/
?/*
? *int [][] Data = {{0,0,0,0,0,0,0}
??????,{0,3,0,0,0,0,0}
??????,{0,0,0,0,0,0,0}
??????,{1,4,0,0,0,0,0}
??????,{0,0,7,0,0,0,0}
??????,{0,0,0,0,0,5,0}
??????,{0,0,0,0,0,0,0}
??????,{0,0,0,0,0,0,0}
??????,{0,0,0,0,0,0,0}
??????,{0,0,0,0,0,0,0}};
??int CompressData[][] = new int[10][3];//存儲壓縮後數據的數組
??int Index;//壓縮數組的下標
??int i,j;
??Index = 0;
??System.out.println("Two dimensional sparse array:");
??for(i=0;i<9;i++){
???for(j=0;j<7;j++){
????System.out.print(" "+Data[i][j]+" ");
???}
???System.out.println("");
??}
??for(i=0;i<9;i++){
???for(j=0;j<7;j++){
????if(Data[i][j] != 0){
?????Index++;//增加下標值
?????CompressData [Index][0] = i;//元素行位置
?????CompressData [Index][1] = j;//元素列位置
?????CompressData [Index][2] = Data[i][j];//元素值
????}
???}
??}
??CompressData [0][0] = 9;//原數組的行數
??CompressData [0][1] = 7;//原數組的列數
??CompressData [0][2] = Index;//使用元素個數
??
??System.out.println("Two dimensional compress array:");
??for(i=0;i<Index;i++){
???for(j=0;j<3;j++){
????System.out.print(" "+CompressData[i][j]+" ");
???}
???System.out.println("");
??}
? */