This java program will show how to do simple Encoding .
Sample Output:-
Enter the String to Encode
Hello World
The encoded string:
@+$$( [(>$~
import java.io.*;
import java.util.*;
class Encoder
{
public static void main(String args[ ])
{
String st,st2=" ";
System.out.println("Enter the String to Encode");
try {
Scanner in=new Scanner(System.in);
st=in.nextLine();
for (int i=0;i<st.length();i++)
{
char ch=Character.toLowerCase(st.charAt(i));
switch (ch)
{
case 'a':
st2=st2+"{";
break;
case 'b':
st2=st2+"}";
break;
case 'c':
st2=st2+"#";
break;
case 'd':
st2=st2+"~";
break;
case 'e':
st2=st2+"+";
break;
case 'f':
st2=st2+"-";
break;
case 'g':
st2=st2+"*";
break;
case 'h':
st2=st2+"@";
break;
case 'i':
st2=st2+"/";
break;
case 'j':
st2=st2+"\\";
break;
case 'k':
st2=st2+"?";
break;
case 'l':
st2=st2+"$";
break;
case 'm':
st2=st2+"!";
break;
case 'n':
st2=st2+"^";
break;
case 'o':
st2=st2+"(";
break;
case 'p':
st2=st2+")";
break;
case 'q':
st2=st2+"<";
break;
case 'r':
st2=st2+">";
break;
case 's' :
st2=st2+"=";
break;
case 't':
st2=st2+";";
break;
case 'u':
st2=st2+",";
break;
case 'v' :
st2=st2+"_";
break;
case 'w':
st2=st2+"[";
break;
case 'x' :
st2=st2+"]";
break;
case 'y':
st2=st2+":";
break;
case 'z' :
st2=st2+"\"";
break;
case ' ' :
st2=st2+" ";
break;
case '.':
st2=st2+'3';
break;
case ',':
st2=st2+"1";
break;
case '(':
st2=st2+'4';
break;
case '\"':
st2=st2+'5';
break;
case ')' :
st2=st2+"7";
break;
case '?' :
st2= st2+"2";
break;
case '!':
st2= st2+"8";
break;
case '-' :
st2= st2+"6";
break;
case '%' :
st2 = st2+"9";
break;
case '1':
st2=st2+"r";
break;
case '2':
st2=st2+"k";
break;
case '3':
st2=st2+"b";
break;
case '4':
st2 = st2+"e";
break;
case '5':
st2 = st2+"q";
break;
case '6':
st2 = st2+"h";
break;
case '7':
st2 = st2+"u";
break;
case '8' :
st2= st2+"y";
break;
case '9':
st2 = st2+"w";
break;
case '0':
st2 = st2+"z";
break;
default:
st2=st2+"0";
break;
}
}
}
catch(Exception ioe)
{
ioe.printStackTrace();
}
System.out.println("The encoded string: \n" +st2);
}
}