字符和数字之间的转换
自己用JAVA写的，第一个正式的“作品”。
1
//
字符和数字之间的转换
2
import
java.io.
*
;
3
4
class
JavaBase
5
{
6
public static void main( String [] args ) throws IOException
7
{
8 showMenu();
9 String str = null;
10 do
11 {
12 byte [] bytes = new byte[10];
13 int ch = System.in.read( bytes );
14 str = new String( bytes, 0, ch-2 );
15 int choices = Integer.parseInt( str );
16 switch( choices )
17 {
18 case 1:
19 System.out.println( "The Char-Word Unicode:" );
20 System.out.println( "Please input the char you want to analyse:" );
21 System.out.println( "Ends With the Char 'q' " );
22 toNumer( System.in );
23 System.out.println( "Now Back the menu" );
24 showMenu();
25 break;
26 case 2:
27 System.out.println( "The Num To The Char Unicode:" );
28 System.out.println( "Please input the num you want to analyse:" );
29 System.out.println( "Ends With the Char 'q' " );
30 toChar( System.in );
31 showMenu();
32 break;
33 case 3:
34 System.out.println( "You choice to quit " );;
35 return;
36 default:
37 System.out.println( "Please choise again :" );
38 showMenu();
39
}
40 }
41 while( str.compareTo( "quit" ) != 0 ) ;
42 }
43
44 static void showMenu()
45 {
46 System.out.println( "Please Input your Choice:" );
47 System.out.println( "1.Char To Num;2.Num To Char;3.Quit." );
48 }
49
50// //字母转换数字
51 static void toNumer( InputStream is )
52 {
53 int x = 0;
54 do
55 {
56 try
57 {
58 x = is.read();
59 if( x !='\r' && x != '\n' )
60 System.out.println( x );
61// if( x =='\r' )
62// System.out.println( 13 );
63// if( x == '\n' )
64// System.out.println( 10 );
65 }
66 catch( Exception e )
67 {
68 //System.out.println( e.toString() );
69 }
70 }
71 while( x != 'q' );
72 }
73
74 //convert the num to char
75 static void toChar( InputStream is )
76 {
77 String str = null;
78 do
79 {
80 try
81 {
82 byte [] bytes = new byte[20];
83 int length = is.read( bytes );
84 // System.out.println( "The leagth : " + length );
85 str = new String( bytes,0,length-2 );
86 // System.out.println( "The String is : " + str );
87 // System.out.println( "The String length : " + str.length() );
88 int num = Integer.parseInt( str, 10 );
89 System.out.println( (char)num );
90 }
91 catch( Exception e )
92 {
93 // System.out.println( e.toString() );
94 }
95 }
96 while( str.compareTo( "q" )!= 0 );
97 }
98
}
//
字符和数字之间的转换
2
import
java.io.
*
;3
4
class
JavaBase5
{6
public static void main( String [] args ) throws IOException7
{ 8
showMenu();9
String str = null;10
do11
{12
byte [] bytes = new byte[10];13
int ch = System.in.read( bytes );14
str = new String( bytes, 0, ch-2 );15
int choices = Integer.parseInt( str );16
switch( choices )17
{18
case 1:19
System.out.println( "The Char-Word Unicode:" );20
System.out.println( "Please input the char you want to analyse:" );21
System.out.println( "Ends With the Char 'q' " );22
toNumer( System.in );23
System.out.println( "Now Back the menu" );24
showMenu();25
break;26
case 2:27
System.out.println( "The Num To The Char Unicode:" );28
System.out.println( "Please input the num you want to analyse:" );29
System.out.println( "Ends With the Char 'q' " );30
toChar( System.in );31
showMenu();32
break;33
case 3:34
System.out.println( "You choice to quit " );; 35
return;36
default:37
System.out.println( "Please choise again :" );38
showMenu(); 39
}40
}41
while( str.compareTo( "quit" ) != 0 ) ; 42
}43
44
static void showMenu()45
{46
System.out.println( "Please Input your Choice:" );47
System.out.println( "1.Char To Num;2.Num To Char;3.Quit." );48
}49
50
// //字母转换数字51
static void toNumer( InputStream is )52
{53
int x = 0;54
do55
{56
try57
{58
x = is.read();59
if( x !='\r' && x != '\n' )60
System.out.println( x );61
// if( x =='\r' )62
// System.out.println( 13 );63
// if( x == '\n' )64
// System.out.println( 10 ); 65
}66
catch( Exception e )67
{68
//System.out.println( e.toString() );69
} 70
}71
while( x != 'q' );72
} 73
74
//convert the num to char75
static void toChar( InputStream is )76
{ 77
String str = null;78
do79
{80
try81
{82
byte [] bytes = new byte[20];83
int length = is.read( bytes );84
// System.out.println( "The leagth : " + length );85
str = new String( bytes,0,length-2 );86
// System.out.println( "The String is : " + str );87
// System.out.println( "The String length : " + str.length() ); 88
int num = Integer.parseInt( str, 10 ); 89
System.out.println( (char)num );90
}91
catch( Exception e )92
{93
// System.out.println( e.toString() );94
} 95
}96
while( str.compareTo( "q" )!= 0 );97
}98
}