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3 Chapter 1

4 Chapter 2 21 printf("this is my first program\n"); printf("\n"); printf(" \n"); printf("this is my second program\n"); printf(" \n"); 22 int a, b, c; a = 1; b = 2; c = a + b; printf("a=%d b=%d c=%d\n", a, b, c); 23 int a, b, c; printf("please enter two numbers:");

5 scanf("%d %d", &a, &b); c = a + b; printf("\na=%d b=%d c=%d", a, b, c); 24 int i, n; printf("\nplease enter number:"); scanf("%d", &n); printf("\n"); printf("yes "); printf("\n print %d many yes",n); int i, n; printf("\nplease enter number:"); scanf("%d", &n); printf("\n"); printf("%d", i); printf("\n print the numbers from 0 to %d", n-1); 241 for 1 for(i=0;i<10;i++) printf("yes "); for(i=0;i<100;i++) printf("happy "); for(i=0;i<1000;i++) printf("laugh "); 242 for 2

6 printf("yes "); 0 i=0; 1 i<n; 0<3, 2 printf("yes "); 3 i++ i 1 i=1 4 i<n; 1<3, 5 printf("yes "); 6 i++ i 1 i=2 7 i<n; 2<3, 8 printf("yes "); 9 i++ i 1 i=3 10 i<n; 3<3, 11 for 243 for 3 printf("yes "); for( ; ; ) 244 for 4 printf("%d", i); 0 i=0; 1 i<n; 0<3, 2 printf("%d", i); 0 3 i++ i 1 i=1 4 i<n; 1<3, 5 printf("%d", i); 1 6 i++ i 1 i=2 7 i<n; 2<3, 8 printf("%d", i); 2 9 i++ i 1 i=3

7 10 i<n; 3<3, 11 for 25 int i, n; printf("\nplease enter number:"); scanf("%d", &n); printf("%d", i+1); int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<n;j++) printf("%4d", j+1); printf("\n"); 251 for int i, j, n; 5 6 printf("\nplease enter number:"); 7 scanf("%d", &n); for(j=0;j<n;j++) 13 printf("%4d", j+1); 14 printf("\n"); : for?

8 : : 5? : C ( ) : for? : for for :? : 252 for int i, j, n; 5 6 printf("\nplease enter number:"); 7 scanf("%d", &n); for(j=0;j<n;j++) 13 printf("%4d", j+1); 14 printf("\n"); for : i=0 i 0 : i<3 : for : j=0 j 0 : j<3 : printf("%4d", j+1); 1 : j++ j 1 : j<3 : printf("%4d", j+1); 2 : j++ j 2 : j<3 : printf("%4d", j+1); 3 : j++ j 3 j<3 for (12 ) 14 printf("\n"); (11-15 ) : i++ i 1 : i<3 : for

9 : j=0 j 0 : j<3 : printf("%4d", j+1); 1 : j++ j 1 : j<3 : printf("%4d", j+1); 2 : j++ j 2 : j<3 : printf("%4d", j+1); 3 : j++ j 3 j<3 for (12 ) 14 printf("\n"); (11-15 ) : i++ i 2 : i<3 : for : j=0 j 0 : j<3 : printf("%4d", j+1); 1 : j++ j 1 : j<3 : printf("%4d", j+1); 2 : j++ j 2 : j<3 : printf("%4d", j+1); 3 : j++ j 3 j<3 for (12 ) 14 printf("\n"); (11-15 ) : i++ i 3 : i<3 for (10 ) int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<n;j++) printf("%4d", j+1); printf("\n");

10 27 int i, j, k, n; printf("\nplease enter number:"); scanf("%d", &n); k = 1; for(j=0;j<n;j++) printf("%4d", k++); printf("\n"); 28 int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<i+1;j++) printf("%4d", j+1); printf("\n"); int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<n-i;j++) printf("%4d", j+1); printf("\n");

11 281 for int i, j, k, n; 5 6 printf("\nplease enter number:"); 7 scanf("%d", &n); 9 10 k=1; for(j=0;j<n;j++) 14 printf("%4d", k++); 15 printf("\n"); k=1; k 1 11 for : i=0 i 0 : i<3 : for : j=0 j 0 : j<3 : printf("%4d", k++); 1 k 2 : j++ j 1 : j<3 : printf("%4d", k++); 2 k 3 : j++ j 2 : j<3 : printf("%4d", k++); 3 k 4 : j++ j 3 j<3 for (13 ) 15 printf("\n"); (12-16 ) : i++ i 1 : i<3 : for : j=0 j 0 : j<3 : printf("%4d", k++); 4 k 5 : j++ j 1 : j<3 : printf("%4d", k++); 5 k 6 : j++ j 2 : j<3 : printf("%4d", k++); 6 k 7 : j++ j 3 j<3 for (13 )

12 15 printf("\n"); (12-16 ) : i++ i 2 : i<3 : for : j=0 j 0 : j<3 : printf("%4d", k++); 7 k 8 : j++ j 1 : j<3 : printf("%4d", k++); 8 k 9 : j++ j 2 : j<3 : printf("%4d", k++); 9 k 10 : j++ j 3 j<3 for (13 ) 15 printf("\n"); (12-16 ) : i++ i 3 : i<3 for (11 ) for int i, j, n; 5 6 printf("\nplease enter number:"); 7 scanf("%d", &n); for(j=0;j<i+1;j++) 12 printf("%4d", j+1); 13 printf("\n");

13 for int i, j, n; 5 6 printf("\nplease enter number:"); 7 scanf("%d", &n); for(j=0;j<n-i;j++) 12 printf("%4d", j+1); 13 printf("\n");

14 Chapter 3

15 Chapter

17 Chapter 5 ***** ***** ***** ***** ***** * ** *** **** ***** * ** *** **** ***** * *** ***** ******* ********* * *** ***** ******* ********* ******* ***** *** *

18 * * *** *** ***** ***** ******* ******* ****************** ******* ******* ***** ***** *** *** * * [ n, 2-8 ] * ********* * *** *********** *** ***** ************* ***** ******* *************** ******* *********************************** [ 2*n ] * *** ***** ******* ********* * *********** * *** ************* *** ***** *************** ***** ******* ***************** ******* ************************************* $$$$$$$ $*****$ $*****$ $*****$ $*****$ $*****$ $$$$$$$ [ n+2 + n+1 = 2*n + 3 ] [ *2 ] [ *1 ] * ** *@* *@@* *@@@* *@@@@* *@@@@@* *@@@@* *@@@* *@@* *@* ** *

19 int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<n;j++) printf("*"); printf("\n");

20 Chapter 6 61 int a[30][30]; int i, j, k, n; printf("\nplease enter number:"); scanf("%d", &n); k=0; for(j=0;j<n;j++) a[i][j] = k++; for(j=0;j<n;j++) printf("%4d", a[i][j]); printf("\n");

21 ( ) 4 5 a[ 0][ 0], a[ 0][ 1], a[ 0][ 2], a[ 0][ 3],,,, a[ 0][28], a[ 0][29], a[ 1][ 0], a[ 1][ 1], a[ 1][ 2], a[ 1][ 3],,,, a[ 1][28], a[ 1][29], a[ 2][ 0], a[ 2][ 1], a[ 2][ 2], a[ 2][ 3],,,, a[ 2][28], a[ 2][29], a[29][ 0], a[29][ 1], a[29][ 2], a[29][ 3],,,, a[29][28], a[29][29] int a[30][30]; 5 int i, j, k, n; 6 7 printf("\nplease enter number:"); 8 scanf("%d", &n); 9 10 k=0; for(j=0;j<n;j++) 13 a[i][j] = k++; for(j=0;j<n;j++) 18 printf("%4d", a[i][j]); 19 printf("\n"); 20

22 int a[30][30]; int i, j, k, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<n;j++) a[i][j]=j+1; // [A] for(j=0;j<n;j++) printf("%4d", a[i][j]); printf("\n"); : a[i][j]=i+1; : a[i][j]=i+j+1; : a[i][j]=i-j; : a[i][j]=j-i; : a[i][j]=(i+1)*(j+1); 63 int a[30][30]=0,; int i, j, k, n; printf("\nplease enter number:"); scanf("%d", &n); a[i][i]=i+1; // [A] for(j=0;j<n;j++)

23 printf("%4d", a[i][j]); printf("\n"); : a[i][i]=n-i; : a[0][i]=i+1; : a[n-1][i]=i+1; : a[i][0]=i+i; : a[i][n-1]=i+1; : a[i][n-i-1]=i+1; 64 int a[30][30]=0,; int i, j, k, n; printf("\nplease enter number:"); scanf("%d", &n); k=0; a[i][i]=k++; // [A] for(j=0;j<n;j++) printf("%4d", a[i][j]); printf("\n"); : a[0][i]=k++; : a[n-1][i]=k++; : a[i][0]=k++; : a[i][n-1]=k++; : a[i][n-i-1]=k++; : a[n-i-1][i]=k++; 65 int a[30][30]=0,; int i, j, k, n; printf("\nplease enter number:"); scanf("%d", &n); k=0;

24 for(j=0;j<n;j++) a[i][j]=k++; // [A] for(j=0;j<n;j++) printf("%4d", a[i][j]); printf("\n"); : a[j][i]=k++; : a[i][n-j-1]=k++; : a[n-i-1][j]=k++; : a[n-i-1][n-j-1]=k++; : a[j][n-i-1]=k++; : a[n-j-1][i]=k++; 66 int i, n; printf("\nplease enter number:"); scanf("%d", &n); if((i%2)==0) printf("\ni=%d is even number", i); else printf("\ni=%d is odd number", i); // // 67 int a[30][30]; int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<n;j++) if(i==j) a[i][j]=9; else a[i][j]=1;

25 for(j=0;j<n;j++) printf("%4d", a[i][j]); printf("\n"); int a[30][30]; int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<n;j++) if(i>j) a[i][j]=9; else a[i][j]=1; for(j=0;j<n;j++) printf("%4d", a[i][j]); printf("\n"); if((i%2)==0) % i%2 i 2 i 0, 1 if((i%2)==0) i

27 Chapter 7 (2 ) number = number = number = number = number =

28 number = number = number = number = number = number =

29 number = number = 3 : number = 5 : (3X3, 5x5) x3 1 a[0][1] 2 a[-1][2] -1 a[2][2] 3 a[1][3] 3 a[1][0] 4 a[0][1] a[2][0] 5 a[1][1] 6 a[0][2] 7 a[-1][3] -1, 3 a[2][0] a[0][2] a[1][2] 8 a[0][3] 3 a[0][0]

30 9 a[-1][1] a[2][1]

31 Chapter 8 - int i, n; printf("\nplease enter number:"); scanf("%d", &n); i=0; while(i<n) printf("\ni=%4d", i); i++; printf("\ni=%4d", i); while( ) ; int a[100]=1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ; int i, n; printf("\nprint the contents of array a[]"); i=0; while(a[i]>0) printf("%4d", a[i]); i++; int a[100]=11, 12, 13, 14, 15, 6, 7, 8, 9, 10, ; int i, n; printf("\nprint the contents of array a[]");

32 i=0; while(a[i]>0) if(a[i]>10) printf("big "); else printf("small "); i++; int a[100]=11, 12, 13, 14, 15, 6, 7, 8, 9, 10, ; int i, n; printf("\nprint the contents of array a[]"); i=0; while(1) if(a[i]<=0) break; if(a[i]>10) printf("big "); else printf("small "); i++; int a[100]=11, 12, 13, 14, 15, 6, 7, 8, 9, 10, ; int b[100]=0,; int i, n; i=0; while(a[i]>0) b[i]=a[i]; i++; // a[] b[] printf("\nprint the contents of array b[]"); i=0; while(b[i]>0) printf("%4d", b[i]); i++;

34 Chapter 9 (1 ) for(i=0;i<1000;i++) a[i]=i; a[] 0 4, 6, 8, 10, 12, 14,,,, , 9, 12, 15, 18, 21,,,, , 15, 20, 25, 30, 35,,,, , 21, 28, 35, 42, 27,,,,

35 a[2]=5; a[3]= a[4]= a[5]= a[6]=

36 Chapter 10 FILE *fin; char finname[80]; int c; printf("\nplease enter File name:"); scanf("%s", finname); fin = fopen(finname, "r"); c = fgetc(fin); while(c!= EOF) printf("%c", c); c = fgetc(fin); fclose(fin); c = fgetc(fin); while(c!= EOF) printf("%c", c); c = fgetc(fin);

37 unsigned char a, b, c; a = 'A'; b = 'B'; c = 'C'; printf("\n%c %c %c ", a, b, c); A B C printf("\n%d %d %d ", a, b, c); unsigned char a, b, c; a = 65; b = 66; c = 67; printf("\n%c %c %c ", a, b, c); FILE *fin, *fout; char finname[80]; char foutname[80]; int c;

38 printf("\nplease enter input file name:"); scanf("%s", finname); printf("\nplease enter output file name:"); scanf("%s", foutname); fin = fopen(finname, "rb"); if(fin==null) printf("\ncannot open file:%s", finname); exit(1); fout = fopen(foutname, "wb"); if(fout==null) printf("\ncannot open file:%s", foutname); exit(1); c = fgetc(fin); while(c!= EOF) fputc(c, fout); c = fgetc(fin); fclose(fin); fclose(fout); E 63 6C C F 2E 68 # i n c l u d e < s t d i o h 3E 0D 0A 69 6E D E D 0A 7B > i n t m a i n ( ) 0D 0A E C 20 6E 3B 0D i n t i, n ; 0A int i, n;

39 FILE *fin; char fname[80]; int c; printf("\nplease enter input file name:"); scanf("%s", fname); fin = fopen(fname, "rb"); if(fin==null) printf("\ncannot open file:%s", fname); exit(1); c = fgetc(fin); while(c!= EOF) printf("%02x ", c); c = fgetc(fin); fclose(fin);

40 Chapter 11 >hoidts<edulcni# )(niam tni ;n, j, i tni int i, j, n; # i i n n t c l m i u a n d i t e n < ( i s ), t d j i, o n h ; > $$$ $$$ $$$ int i, j, k;$$$int a[10]=0,; #include<stidoh>$$$>hoidts<edulcni# $$$)(niam tni $$$ int i, j, k;$$$;,0=]01[a tni ( isprint ) E 63 6C C F 2E 68 #include<stdioh

41 E 0D 0A 69 6E D E D 0A 7B > D 0A E C 6A 2C 6E 2C 6B int i,j,n,k C 6C 3B 0D 0A E B 33 30,l; int a[ D 5B D 3D 7B 30 2C 7D 3B 0D 0A 0D 0A 20 ][30]=0,; E E 75 6D printf("number D B 0D 0A 0D 0A E 66 ="); scanf C 26 6E 29 3B 0D 0A 0D 0A ("%d",&n); F D 30 3B 69 3C 6E 3B 69 2B 2B for(i=0;i<n;i D 0A B 0D 0A ) f 0000A0 6F A 3D 30 3B 6A 3C 6E 3B 6A 2B 2B 29 0D or(j=0;j<n;j++) 0000B0 0A B 0D 0A B 69 5D a[i] D 0D 0A 0D 0A retur E B 0D 0A 7D 0D 0A n 0; FILE *fin; char fname[80]; unsigned char line[100]; int c; printf("\nplease enter file name:"); scanf("%s", fname); fin = fopen(fname, "rb"); if(fin == NULL) printf("\ncannot open file: %s", fname); exit(1); c = fgetc(fin); while(c! = EOF) if(c!= 13) else 13 0D 0D 0A c = fgetc(fin); while fclose(fin); c = fgetc(fin); while(c!= EOF) c = fgetc(fin); if(c!= 13)

42 else 13 ( 0D) 0A FILE *fin1, fin2; char fname1[80], fname2[80]; unsigned char line[100]; int c, d; printf("\nplease enter file name:"); scanf("%s", fname1); printf("\nplease enter file name:"); scanf("%s", fname2); fin1 = fopen(fname1, "rb"); if(fin1 == NULL) printf("\ncannot open file: %s", fname1); exit(1); fin2 = fopen(fname1, "rb"); if(fin2 == NULL) printf("\ncannot open file: %s", fname2); exit(1); c = 0; d = 0; while((c!= EOF) && (d!= EOF)) c = fgetc(fin1); while((c! = EOF)&&(c!= 13)) c = fgetc(fin1); // while loop EOF 13 if(c!= EOF) 13 0D 0D 0A else // d = fgetc(fin2); while((2! = EOF)&&(2!= 13)) d = fgetc(fin2); // while loop EOF 13 if(c!= EOF) 13 0D 0D 0A else //

43 file1 file2 fclose(fin1); fclose(fin2);

44 Chapter 12 // oneline int oneline(int n) int i; printf("%4d", i+1); int i, n; printf("\nplease enter number:"); scanf("%d", &n); oneline(i+1); // oneline printf("\n"); int i, j, n; printf("\nplease enter number:"); scanf("%d", &n); for(j=0;j<i+1;j++) printf("%4d", j+1); printf("\n"); int factorial(int n)

45 int i, fact; fact = 1; for(i=2;i<=n;i++) fact = i*fact; return fact; int square(int n) return n*n; int n; printf("\nplease enter number:"); scanf("%d", &n); printf("\nnumber=%4d factorial = %4d square = %4d ", n, factorial(n), square(n));

46 Chapter 13 # #### # # # # ## # # #

47 Chapter 14 -C/C++,

48 Chapter 15 -?

49 Chapter 16

Java

Java Java http://cafedaumnet/pway Chapter 1 1 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength();