Java

Transcription

1 Java

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3 Chapter 1 1 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); 11 public static void main(string args[]){ Systemoutprintln("This is my first Program"); public static void main(string args[]){ Systemoutprintln(" "); Systemoutprintln("This is my first Program"); Systemoutprintln(" "); public static void main(string args[]){ Systemoutprint(" \n"); Systemoutprint("This is my first Program\n"); Systemoutprint(" \n"); 12

4 public static void main(string args[]){ int a, b, c; a = 1; b = 2; c = a + b; Systemoutprintln("a = "+ a + ", b = " + b + ", c = " + c); 13 public static void main(string args[])throws Exception{ int a, b, c; Systemoutprint("please enter first number(a): "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); a = IntegerparseInt(inputNumreadLine()); Systemoutprint("please enter second number(b): "); inputnum = new BufferedReader(new InputStreamReader(Systemin)); b = IntegerparseInt(inputNumreadLine()); c = a + b; Systemoutprintln("a = "+ a + ", b = " + b + ", c = " + c); 14 public static void main(string args[])throws Exception{ int n;

5 Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++) { Systemoutprint("yes "); Systemoutprintln("i=" + i + ": print " + n +" many yes "); public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++) { Systemoutprintln("i=" + i + ": print the numbers from 0 to " + (n-1)); 141 for 1 for(int i=0;i<10;i++) Systemoutprintln("yes "); for(int i=0;i<100;i++) Systemoutprintln("happy "); for(int i=0;i<1000;i++) Systemoutprintln("laugh "); 142 for 2 for(int i=0;i<n;i++) Systemoutprintln("yes ");

6 143 for 3 for(int i=0;i<n;i++) Systemoutprintln("yes "); for( ; ; ) 144 for 4 for(int i=0;i<n;i++) Systemoutprintln( i );

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8 Chapter public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ Systemoutprint( (i+1) ); public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ Systemoutprint(format4(i+1)); public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring();

9 public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(j+1)); 211 for 5 1: 2: 3: 4: 5: public static String format4(int targetnum){ 6: String strnum = new String(IntegertoString(targetNum)); 7: StringBuffer resultstr = new StringBuffer(); 8: for(int i = strnumlength(); i < 4 ; i++){ 9: resultstrappend(' '); 10: 11: return (resultstrappend(strnum))tostring(); 12: 13: public static void main(string args[])throws Exception{ 14: int n; 15: Systemoutprint("please enter number : "); 16: BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); 17: n = IntegerparseInt(inputNumreadLine()); 18: 19: 20: for(int i =0; i<n; i++){ 21: for(int j =0; j<n; j++){ 22: Systemoutprint(format4(j+1)); 23: 24: 25: 26: 27: 212 for 6

10 1: 2: 3: 4: 5: public static String format4(int targetnum){ 6: String strnum = new String(IntegertoString(targetNum)); 7: StringBuffer resultstr = new StringBuffer(); 8: for(int i = strnumlength(); i < 4 ; i++){ 9: resultstrappend(' '); 10: 11: return (resultstrappend(strnum))tostring(); 12: 13: public static void main(string args[])throws Exception{ 14: int n; 15: Systemoutprint("please enter number : "); 16: BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); 17: n = IntegerparseInt(inputNumreadLine()); 18: 19: 20: for(int i =0; i<n; i++){ 21: for(int j =0; j<n; j++){ 22: Systemoutprint(format4(j+1)); 23: 24: 25: 26: 27: 20 for : i=0 i 0 : i<3 : for : j=0 j 0 : j<3 : Systemoutprint( format4(j+1) ); 1 : j++ j 1 : j<3 : Systemoutprint( format4(j+1) ); 2 : j++ j 2 : j<3 : Systemoutprint( format4(j+1) ); 3 : j++ j 3 j<3 for (21 ) 24 (21-25 ) : i++ i 1 : i<3 : for : j=0 j 0 : j<3 : Systemoutprint( format4(j+1) ); 1 : j++ j 1 : j<3 : Systemoutprint( format4(j+1) ); 2 : j++ j 2 : j<3 : Systemoutprint( format4(j+1) ); 3 : j++ j 3 j<3

11 for (21 ) 24 (21-25 ) : i++ i 2 : i<3 : for : j=0 j 0 : j<3 : Systemoutprint( format4(j+1) ); 1 : j++ j 1 : j<3 : Systemoutprint( format4(j+1) ); 2 : j++ j 2 : j<3 : Systemoutprint( format4(j+1) ); 3 : j++ j 3 j<3 for (21 ) 24 (21-25 ) : i++ i 3 : i<3 for (20 ) 22 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(j+1));

12 23 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int n, k; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); k = 1; for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint( format4(k++) ); 24 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){

13 for(int j =0; j<i+1; j++){ Systemoutprint( format4(j+1) ); public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ for(int j =0; j<n-i; j++){ Systemoutprint(format4(j+1)); 241 for 7 1: 2: 3: 4: 5: public static String format4(int targetnum){ 6: String strnum = new String(IntegertoString(targetNum)); 7: StringBuffer resultstr = new StringBuffer(); 8: for(int i = strnumlength(); i < 4 ; i++){ 9: resultstrappend(' '); 10: 11: return (resultstrappend(strnum))tostring(); 12: 13: 14: public static void main(string args[])throws Exception{ 15: int n, k; 16: Systemoutprint("please enter number : "); 17: BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); 18: n = IntegerparseInt(inputNumreadLine()); 19: 20: 21: k = 1; 22: for(int i =0; i<n; i++){ 23: for(int j =0; j<n; j++){ 24: Systemoutprint(format4(k++)); 25: 26: 27: 28: 29:

14 21 k=1; k 1 22 for : i=0 i 0 : i<3 : for : j=0 j 0 : j<3 : Systemoutprint(format4(k++)); 1 k 2 : j++ j 1 : j<3 : Systemoutprint(format4(k++)); 2 k 3 : j++ j 2 : j<3 : Systemoutprint(format4(k++)); 3 k 4 : j++ j 3 j<3 for (23 ) 26 (23-27 ) : i++ i 1 : i<3 : for : j=0 j 0 : j<3 : Systemoutprint(format4(k++)); 4 k 5 : j++ j 1 : j<3 : Systemoutprint(format4(k++)); 5 k 6 : j++ j 2 : j<3 : Systemoutprint(format4(k++)); 6 k 7 : j++ j 3 j<3 for (23 ) 26 (23-27 ) : i++ i 2 : i<3 : for : j=0 j 0 : j<3 : Systemoutprint(format4(k++)); 7 k 8 : j++ j 1 : j<3 : Systemoutprint(format4(k++)); 8 k 9 : j++ j 2 : j<3 : Systemoutprint(format4(k++)); 9 k 10 : j++ j 3 j<3 for (23 ) 26

15 (23-27 ) : i++ i 3 : i<3 for (22 ) 242 for 8 1: 2: 3: 4: 5: public static String format4(int targetnum){ 6: String strnum = new String(IntegertoString(targetNum)); 7: StringBuffer resultstr = new StringBuffer(); 8: for(int i = strnumlength(); i < 4 ; i++){ 9: resultstrappend(' '); 10: 11: return (resultstrappend(strnum))tostring(); 12: 13: 14: public static void main(string args[])throws Exception{ 15: int n; 16: Systemoutprint("please enter number : "); 17: BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); 18: n = IntegerparseInt(inputNumreadLine()); 19: 20: 21: for(int i =0; i<n; i++){ 22: for(int j =0; j<i+1; j++){ 23: Systemoutprint(format4(j+1) ); 24: 25: 26: 27: 28: 243 for 9 1: 2: 3: 4:

16 5: public static String format4(int targetnum){ 6: String strnum = new String(IntegertoString(targetNum)); 7: StringBuffer resultstr = new StringBuffer(); 8: for(int i = strnumlength(); i < 4 ; i++){ 9: resultstrappend(' '); 10: 11: return (resultstrappend(strnum))tostring(); 12: 13: 14: public static void main(string args[])throws Exception{ 15: int n; 16: Systemoutprint("please enter number : "); 17: BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); 18: n = IntegerparseInt(inputNumreadLine()); 19: 20: 21: for(int i =0; i<n; i++){ 22: for(int j =0; j<n-i; j++){ 23: Systemoutprint(format4(j+1)); 24: 25: 26: 27: 28:

17 Chapter 3 -

18 Chapter 4 if 1) 1-1) number = 5 1-2) number = 5 1-3) number = 5 1-4) number = 5 1-5) number = 5 1-6) number = 5

19 1-7) number = 5 1-8) number = 5 1-9) number = ) number = 5

20 Chapter 5 for Systemoutprint 2) 2-1) number = 5 2-2) number = 5 2-3) number = 5 2-4) number = 5 2-5) number = 5

21 2-6) number = 5 2-7) number = 5 [ n, 2-8 ] 2-8) number = 5 [ 2*n ] 2-9) number = 5

22 2-10) number = 5 [ n+2 + n+1 = 2*n + 3 ] [ *2 ] [ *1 ]

23 Chapter 6 61 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n, k; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); k=0; for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ a[i][j] = k++; for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(a[i][j]));

24 ) int a[][] = new int[30][30]; 2) int a[] = {1, 2, 3, 4, 5, 6; 3) int a[][] = {{1, 2, 3, 4, 5, 6,{ 7, 8, 9, 10, 11, 12;

25 : 2: 3: 4: public static String format4(int targetnum){ 5: String strnum = new String(IntegertoString(targetNum)); 6: StringBuffer resultstr = new StringBuffer(); 7: for(int i = strnumlength(); i < 4 ; i++){ 8: resultstrappend(' '); 9: 10: return (resultstrappend(strnum))tostring(); 11: 12: 13: public static void main(string args[])throws Exception{ 14: int[][] a = new int[30][30]; 15: int n, k; 16: Systemoutprint("please enter number : "); 17: BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); 18: n = IntegerparseInt(inputNumreadLine()); 19: 20: k=0; 21: 22: for(int i =0; i<n; i++){ 23: for(int j =0; j<n; j++){ 24: a[i][j] = k++; 25: 26: 27: for(int i =0; i<n; i++){ 28: for(int j =0; j<n; j++){ 29: Systemoutprint(format4(a[i][j])); 30: 31: 32: 33: 34: 62 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){

26 for(int j =0; j<n; j++){ a[i][j] = j+1; //[A] for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(a[i][j])); : 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 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ a[i][i] = i+1; //[A] for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(a[i][j])); : 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;

27 64 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n, k; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); k=0; for(int i =0; i<n; i++){ a[i][i] = k++; //[A] for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(a[i][j])); : 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 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n, k; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine());

28 k=0; for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ a[i][j] = k++; //[A] for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(a[i][j])); : a[j][i]=k++; : a[i][n-j-1]=k++; : a[n-i-][j]=k++; : a[n-i-1][n-j-1]=k++; : a[j][n-i-1]=k++; : a[n-j-1][i]=k++; 66 public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i=0; i<n; i++){ if((i%2)==0){ Systemoutprintln("i = "+ i+" is even number");// else{ Systemoutprintln("i = "+ i+" is odd number");// 67 public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring();

29 public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ if(i==j){ a[i][j] = 9; else{ a[i][j] = 1; for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(a[i][j])); public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[][] a = new int[30][30]; int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ if(i>j){ a[i][j] = 9; else{ a[i][j] = 1; for(int i =0; i<n; i++){ for(int j =0; j<n; j++){ Systemoutprint(format4(a[i][j]));

30

31 Chapter 7 (2 ) 3) 2 3-1) 1 3-2) 1 3-3) 1 3-4) 1 i

32 3-5) 9 0 number = ) (i j) 0 1 (+,-,*,/) number = ) 3-6 number = ) 3-6 number = , 3-7, 3-8) 3-9) 1 number =

33 3-10) 1 number = ) number number = ) 1 number = ) number = 3 : number = 5 : (3X3, 5x5) x3 1 a[0][1] 2 a[-1][2] -1 a[2][2] 3

34 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] 9 a[-1][1] a[2][1]

35 Chapter 8 - public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int n; Systemoutprint("please enter number : "); BufferedReader inputnum = new BufferedReader(new InputStreamReader(Systemin)); n = IntegerparseInt(inputNumreadLine()); int i=0; while(i<n){ Systemoutprintln(" i =" + format4(i) ); i++; for(int i=0;i<n;i++) Systemoutprintln(" i =" + format4(i) ); while( ) { ; public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[] a = new int[100]; Systemoutprintln("Print the contents of array a[]"); a[0] = 1; a[1] = 2; a[2] = 3; a[3] = 4; a[4] = 5;

36 a[5] = 6; a[6] = 7; a[7] = 8; a[8] = 9; a[9] = 10; int i=0; while(a[i]>0){ Systemoutprint(" i =" + format4(a[i]) ); i++; public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[] a = new int[100]; Systemoutprintln("Print the contents of array a[]"); a[0] = 11; a[1] = 12; a[2] = 13; a[3] = 14; a[4] = 15; a[5] = 6; a[6] = 7; a[7] = 8; a[8] = 9; a[9] = 10; int i=0; while(a[i]>0){ if(a[i]>10){ Systemoutprint(" big"); else{ Systemoutprint(" small"); i++; public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum));

37 StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[] a = new int[100]; Systemoutprintln("Print the contents of array a[]"); a[0] = 11; a[1] = 12; a[2] = 13; a[3] = 14; a[4] = 15; a[5] = 6; a[6] = 7; a[7] = 8; a[8] = 9; a[9] = 10; int i=0; while(true){ if(a[i]<=0){ break; if(a[i]>10){ Systemoutprint(" big"); else{ Systemoutprint(" small"); i++; public static String format4(int targetnum){ String strnum = new String(IntegertoString(targetNum)); StringBuffer resultstr = new StringBuffer(); for(int i = strnumlength(); i < 4 ; i++){ resultstrappend(' '); return (resultstrappend(strnum))tostring(); public static void main(string args[])throws Exception{ int[] a = new int[100]; int[] b = new int[100]; Systemoutprintln("Print the contents of array a[]"); a[0] = 11; a[1] = 12; a[2] = 13; a[3] = 14; a[4] = 15; a[5] = 6; a[6] = 7; a[7] = 8; a[8] = 9;

38 a[9] = 10; int i=0; while(a[i]>0){// a[] b[] b[i]=a[i]; i++; Systemoutprintln("Print the array b[]"); i=0; while(b[i]>0){ Systemoutprint(format4(b[i])); i++;

39 Chapter 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,,,,

40 93 a[0]=2; a[1]=3; a[2]=5; a[3]= a[4]= a[5]= a[6]=

41 Chapter 10 public class FileEx1 { public static void main(string[] args) throws Exception { Systemoutprintln("\nPlease enter File name:"); BufferedReader inputname; inputname = new BufferedReader(new InputStreamReader(Systemin)); String filename = inputnamereadline(); int c; RandomAccessFile raf = new RandomAccessFile(filename, "r"); c = rafread(); while(c!= -1) { Systemoutprint((char)c); c = rafread(); rafclose(); c = rafread(); c = rafread(); while(c!= -1) { Systemoutprint((char)c); c = rafread();

42 101 public class FileEx2 { public static void main(string[] args) { char a, b, c; a = 'A'; b = 'B'; c = 'C'; Systemoutprintln(a + " " + b + " " + c); A B C Systemoutprintln((int)a + " " + (int)b + " " + (int)c); public class FileEx3 { public static void main(string[] args) { int a, b, c; a = 65; b = 66; c = 67; Systemoutprintln((char)a + " " + (char)b + " " + (char)c); A B C public class FileEx4 { public static void main(string[] args) throws Exception { String filename; String foutname; int c;

43 BufferedReader inputname; inputname = new BufferedReader(new InputStreamReader(Systemin)); Systemoutprintln("\nPlease enter input file name:"); filename = inputnamereadline(); Systemoutprintln("\nPlease enter output file name:"); foutname = inputnamereadline(); RandomAccessFile fin = new RandomAccessFile(filename, "r"); RandomAccessFile fout = new RandomAccessFile(foutname, "rw"); c = finread(); while(c!= -1) { foutwrite(c); c = finread(); finclose(); foutclose(); 102 public class FileEx4 { public static void main(string[] args) throws Exception { public class FileEx5 { public static void main(string[] args) throws Exception { String fname; int c; Systemoutprintln("\nPlease enter input file name:");

44 BufferedReader inputname; inputname = new BufferedReader(new InputStreamReader(Systemin)); fname = inputnamereadline(); RandomAccessFile fin = new RandomAccessFile(fname, "r"); c = finread(); while(c!= -1) { Systemoutprint(IntegertoHexString(c) + " "); c = finread(); finclose();

45 Chapter ) ( ) ;*oiavaj tropmi { 1xE ssalc cilbup { )sgra ][gnirts(niam diov citats cilbup ;n,j,i tni 4-2) ( ) int i, j, n; public static void main(string[] args) { public class Ex2 { 4-3) ( ) i p m u p b o l r i p t c u b j c l a l i v a c i a s n s s t i t o E a i x t, * 3 i ; c j {, v o n i ; d 4-4) $$$ ( ) $$$ public class Ex4 {$$$public class Ex4-2 { public static void main(string[] args) {$$$public static void main(string[] args) { int i, j, n;$$$int a10={0,; 4-5) 4-4

46 $$$;*oiavaj tropmi public class Ex5 {$$${ 5xE ssalc cilbup public static void main(string[] args) {$$${ )sgra ][gnirts(niam diov citats cilbup int i, j, n;$$$;n,j,i tni 4-6) hexa ( 16 ) <!-- ( isprint )--> d 70 6f a e 69 6f 2e 2a import javaio* b 0d 0a 0d 0a c c ;public clas f 6c b 0d 0a s sol45 { p c f 69 ublic static voi d e e 67 5b 5d 20 d main(string[] f f 45 args) throws IOE f 6e 20 7b 0d 0a 0d 0a xception { e b 0d 0a int i; e String st d c d = " ", str = " " 0000a0 2c d d b 0d 0a 3d, temp = " "; 0000b0 3a b 0d 0a try { 0000c e 64 Rand 0000d0 6f 6d c e 20 omaccessfile in 0000e0 3d 20 6e e 64 6f 6d = new RandomAcce d 0a d 0d 0a 7d public class Ex6 { public static void main(string[] args) throws Exception { String fname; int line[] = new int[100]; int c; Systemoutprintln("\nPlease enter input file name:"); BufferedReader inputname; inputname = new BufferedReader(new InputStreamReader(Systemin)); fname = inputnamereadline(); RandomAccessFile fin = new RandomAccessFile(fname, "r"); c = finread(); while(c!= -1) { if(c!= 13) { else { 13 0D 0D 0A

47 c = finread(); while finclose(); c = finread(); while(c!= -1) { c = finread(); if(c!= 13) { else { 13 ( 0D) 0A public class Ex6_2 { public static void main(string[] args) throws Exception { String fname1, fname2; int line[] = new int[100]; int c, d; Systemoutprintln("\nPlease enter input file name:"); BufferedReader inputname; inputname = new BufferedReader(new InputStreamReader(Systemin)); fname1 = inputnamereadline(); Systemoutprintln("\nPlease enter input file name:"); fname2 = inputnamereadline(); RandomAccessFile fin1 = new RandomAccessFile(fname1, "r"); RandomAccessFile fin2 = new RandomAccessFile(fname2, "r"); c=0; d=0; while(c!= -1 && d!= -1) { c = fin1read(); while((c!= -1)&&(c!= 13)) { c = fin1read(); // while loop -1 13

48 if(c!= -1) { 13 0D 0D 0A else { // d = fin2read(); while((d!= -1)&&(d!= 13)) { d = fin2read(); // while loop if(c!= -1) { 13 0D 0D 0A else { // file1 file2 fin1close(); fin2close();