!!!Please Any Help greatly Appreciated !!!!!*Cries*!!!!!!!*sobs*

Question

import java.io.*;
// File:
// Author:
public class Assignment
     public static void main (String args [] ) throws Exception
char answer = 0;
boolean run = true;
while(run) {
     InputStreamReader ins = new InputStreamReader (System.in);
     BufferedReader RodneysBuff = new BufferedReader (ins);
     System.out.println( "Add new pet.......................................A");
     System.out.println( "First.............................................F");
     System.out.println( "Previous..........................................P");
     System.out.println( "Next..............................................N");
     System.out.println( "Last..............................................L");
     System.out.println( "Quit..............................................Q");
System.out.println( "Enter Choice: ");     
     String input=RodneysBuff.readLine();
     answer = input.charAt(0);
     switch (answer) {            
          case 'a':
          System.out.println( "Ok add new pet");
          break;
          case 'f':
          System.out.println( "Ok im showing you the first pet in your collection");
          break;
          case 'p':
          System.out.println( "Ok im showing you the previouse pet");
          break;
          case 'n':
          System.out.println( "Ok im showing you the next pet ");
          break;
          case 'l':
          System.out.println( "Ok im showing you the last pet ");
          break;
          case 'q':
          System.out.println( "Exit the program ");
               run = false;
          break;
          default:
          System.out.println( "Invalid data" );
System.out.println();
I am Really Stuck on these Things ...i have done a heaps !!! ..my Brain is FRied atm!!! and if anyone could tell me how to do these i Would be Greatly appreciative to them... or could tell me where to go to get some help on these things ....I AM JUST SO CONFUSED :S:S:S:S:S:S:S:S:S:S:S: sobs
Add a loop to display 20 blank lines (effectively clearing the screen).
After the switch statement, prompt the user to press the ENTER key and then read a line from the keyboard. This stops the code from looping to the next menu display, so the user can read the response to their choice.

Answer 1

Now let's improve your code :
import java.io.*;
// File:
// Author:
public class Assignment
public static void main (String args [] ) throws Exception
char answer = 0;
boolean run = true;
while(run) {
InputStreamReader ins = new InputStreamReader (System.in);
BufferedReader RodneysBuff = new BufferedReader (ins);
System.out.println( "Add new pet.......................................A");
System.out.println( "First.............................................F");
System.out.println( "Previous..........................................P");
System.out.println( "Next..............................................N");
System.out.println( "Last..............................................L");
System.out.println( "Quit..............................................Q");
System.out.println( "Enter Choice: ");
String input=RodneysBuff.readLine();
answer = input.toLowerCase().charAt(0); // to make no difference between A or a
switch (answer) {
case 'a':
System.out.println( "Ok add new pet");
break;
case 'f':
System.out.println( "Ok im showing you the first pet in your collection");
break;
case 'p':
System.out.println( "Ok im showing you the previouse pet");
break;
case 'n':
System.out.println( "Ok im showing you the next pet ");
break;
case 'l':
System.out.println( "Ok im showing you the last pet ");
break;
case 'q':
System.out.println( "Exit the program ");
run = false;
break;
default:
System.out.println( "Invalid data" );
System.out.println("Type enter to continue);
input=RodneysBuff.readLine();
}