import java.util.*;
import java.lang.*;
class lab3{
public static Scanner scanner
= new Scanner
(System.
in); public static int selection = 0;
public static void main
(String[] args
){ while(true){
selection = 0;
display();
scanner
= new Scanner
(System.
in); if(selection == 1)decode();
if(selection == 2)encode();
if(selection == 3)alphabet();
if(selection
== 4)System.
exit(0); //end of if statements
}
}//end of main method
public static void display(){
while(true){
System.
out.
println("1. Decode a message."); System.
out.
println("2. Encode a message."); System.
out.
println("3. Display the alphabet."); System.
out.
println("4. Exit the program."); System.
out.
print("Please enter your selection: "); selection = scanner.nextInt();
if(selection > 4 || selection < 1){
System.
out.
println("please pick a proper number"); else{
break;
}
}
}// end of diplay
public static void alphabet(){
System.
out.
println("A B C D E F G H I J K L M N O P Q R S T U V W X Y Z"); }// end of alphabet
public static void decode(){
System.
out.
println("Enter a Phrase to decode: "); userinputdecode = scanner.nextLine().toUpperCase();
System.
out.
println(userinputdecode
);
char arrUIdecode[] = userinputdecode.toCharArray();
for(int i = 0; i < arrUIdecode.length; i++){
if(arrUIdecode[i]=='A'){
continue;
}
if(arrUIdecode[i]==' '){
continue;
}
}
}// end of decode
public static void encode(){
///////User input/////////
System.
out.
println("Enter a Phrase to encode: "); userinputencode = scanner.nextLine();
userinputencode = userinputencode.toUpperCase(); //converting to uppercase
System.
out.
println(userinputencode
); char arrUserInput[] = userinputencode.toCharArray();
for(int i=0; i<arrUserInput.length;i++){
if(arrUserInput[i]=='Z'){
continue;
}
if(arrUserInput[i]==' '){
continue;
}
}
}// end of encode
}//end of class