TQC107 ~ TQC110 答案

TQC107
public class test{

      public static void main(String args[]){# b" K& o  {- i/ G% l9 P
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            //0 1 2 3 ( K! o! C$ a( E0 u2 @. q1 g
            //1 1 2 3
            //2 1 2 3/ ?2 |* d4 y$ q2 c! J+ A( S

            float tot = 0 ;* B& h$ n$ N4 \- h; L
            for(int i=1;i<args.length;i++){
                     tot += Float.parseFloat(args[i]);2 U: w+ l6 @" _  x2 X4 s$ e  o
            }: e& p  V  ~$ j* p. x( E1 ]: c
            tot /= (args.length-1) ;

            if(args[0].equals("0")){
                     System.out.printf("平均值:%f",tot);% R' v3 d& R  s  B
            }else if(args[0].equals("1")){" E) [2 p8 A8 A8 l7 \) e) m7 o, V
                     System.out.printf("平均值:%.1f",tot);) p3 V2 U8 g2 v! ], u  U
            }else{6 H$ I; ?+ {* F( D3 C5 z. c
                     System.out.printf("平均值:%.2f",tot);
            }/ u  N0 V, u5 O. ~. h1 @


      }
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}
TQC108' Z; r  L6 `4 [) `! P( A6 W" I
import java.lang.*;

public class TQC108" T1 O6 f$ T0 ^$ e, Z+ U
{
  public static void main(String[] args)
  {
for(int i = 1 ; i< 10 ; i++){
   for(int j = 1 ; j <10 ; j++)1 J6 P0 X6 t- H6 y5 d% q$ x( G
      System.out.print(""+i+"*"+j+"="+(i*j)+"\t");
   System.out.println();
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  }
}

TQC109
public class TQC109 {" G7 E) m' d" Z: s( Q: U( u0 o% @
  public static void main(String args[]) {+ C' T0 a: E# k
int r;
r=(int)(Math.random()*100+1);
double area = r*r*Math.PI;, {  u. g! n, {2 L$ z
double vol = r*r*r*Math.PI*43;) m+ c* q2 Y; g& v% X  z' u' F; T
System.out.println( "隨機產生的半徑為：" + r );
System.out.println( "計算後，直徑為：" + (2*r) );5 z- O7 ^2 P" z1 y: X% W7 Z
System.out.println( "計算後，圓面積為：" + area );. M* `2 B. z9 w" t5 {% g$ H3 ~' s
System.out.printf( "四捨五入至小數第1位，則圓面積為：%.1f \n\n",area);
System.out.println( "計算後，圓體積為：" + vol );
System.out.printf( "四捨五入至小數第1位，則圓體積為：%.1f \n\n",vol);
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}

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TQC110
import java.io.*;! d- [" k# z1 y% \- A
import java.util.Date;. K. P/ a  Q  V

class TQC110{
      String items[][];
      long start, end;. X5 f6 Q( v% _0 ^
      Date d;
      BufferedReader br;

      public static void main(String args[]){9 {4 A; ]; j$ M, v
         int total = args.length;
         int pairs = total / 2;
         TQC110 tte;& p- J3 j1 a! Z4 _
         if(total != 0 && pairs != 0)5 Q2 {# Q% G: t7 U. R
         {' R  B0 b+ k) l! d" C# _8 {
            //get value from args..
            String[][] tt = new String[pairs][2];8 E- E: T# L+ P5 n3 O
            for(int i=0; i<pairs; i+=2){( @, U/ D& {+ c% I/ O  c8 o
                  tt[i][0] = args[i];& h0 ?9 v- y; ?2 I
                  tt[i][1] = args[i+1];" r! C' b$ s- m4 I9 d# j( i. D
            }
            tte = new TQC110(tt);; r$ v7 X$ m4 G! r: n2 S/ d6 ]
         }else- C4 A5 B' ?" A4 `
               tte = new TQC110();
         tte.start();! C8 C- p, j$ G
      }

      TQC110(){
         items = new String[5][2];
         items[0][0] = "電腦";, |# A0 d: b1 l; _: b7 F. N- |
         items[0][1] = "computer";
         items[1][0] = "資料庫";
         items[1][1] = "database";
         items[2][0] = "語法";& H8 q. x: K- ^% k; g9 e
         items[2][1] = "syntax";9 E4 q6 x* x/ b1 R" A5 H
         items[3][0] = "學校";& [: J4 y, y: ]$ W. L9 r- T1 D
         items[3][1] = "school";* }+ [2 x/ ~- \- Q1 {
         items[4][0] = "假期";2 v, _/ G5 k6 J# f
         items[4][1] = "vacation";! O0 z2 t0 Z7 T7 i$ M' ~5 L
         //make default value9 S7 e9 s+ B  `. T2 ?) a* N
         br = new BufferedReader(new InputStreamReader(System.in));5 {8 }8 k" U1 k6 n
      }
               % Y3 Z) u/ x6 o" `) l5 x, G: u3 c
      TQC110(String[][] it){. _$ e6 @- p$ i" k: k5 V6 I
         items = it;
         br = new BufferedReader(new InputStreamReader(System.in));- g0 ~6 Q/ f7 L2 J, [
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               ) r+ `3 `" K- y/ H
      void start(){
         String ans = "";
         int correct = 0;    // 計算答對題數  {) z# \* d$ b) V- H# J
         d = new Date();, W4 `" d. v, N" y1 x7 |, c
         start = d.getTime();  // 開始答題時間
         System.out.println("請將題目的中文詞彙翻譯成英文單字!");3 ?* b7 d1 K' k0 W+ T
         System.out.println("輸入英文單字答案後請按Enter鍵：");" ^( Z. q1 ~9 w* O; e- f) B
         System.out.println("          ");
         for(int j = 0; j < items.length ; j++)& F( L1 G* F9 P# v
         {
            System.out.println("第" + (j + 1) + "題__ " + items[j][0]);
            try{) P6 Y0 T# f% B0 F5 i& S
                  ans = br.readLine();# |+ j' M) j, \1 v
            }
            catch(IOException ioexception){4 d! l, z5 Q( T0 q: Z& ?
                  System.out.println(ioexception);
            }  |) D/ M& J: y) H6 a; W+ S
            if(ans.equalsIgnoreCase(items[j][1])){, K7 q, W, @/ i0 d/ J
                  correct+=1;" F& }7 b$ v9 |* j- \
                  System.out.println("答對了!");
                  //count correct0 i6 O  a9 i/ S
                  //ouput correct message+ t# b1 o% N5 ]* i3 V1 u
            }else{
                              System.out.println("答錯了! 正確答案是:" + items[j][1]);6 v6 B$ P& L2 _  l
                  //ouput incorrect message: k4 ]+ C9 X# H" [; h% N
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         d = new Date();
         end = d.getTime(); // 結束答題時間: D4 j; _' ~9 C& c, a/ c
         System.out.print("你使用了" + (end - start) / 1000L + "秒，  在");
         System.out.println(items.length + "題中答對了" + correct + "題");$ z/ V* V* x) b9 N! E
      }
}

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TQC107 ~ TQC110 答案

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