Java Programming

I now have a new problem. This is what im doing, im making basically a program that codes letters so that only people with the decoder can read it, the problem is, is that when I type a letter in more than once, it only prints it out once
Here is my complete code

import java.util.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
 
public class Acrypt {


  public static void main(String[] args) throws IOException{
    System.out.println("What do you want to Acrypt?");
    System.out.print("Please enter A Letter, will be words soon: ");
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    String ans = in.readLine();
   


    if (ans.contains("C") || ans.contains("c")){
	System.out.print("f");
	
}

	if (ans.contains("a") || ans.contains("A")){
	System.out.print("h");
}
	if (ans.contains("b") || ans.contains("B")){
	System.out.print("g");
}

if (ans.contains("d") || ans.contains("D")){
	System.out.print("e");
}
if (ans.contains("e") || ans.contains("E")){
	System.out.print("d");
}
if (ans.contains("f") || ans.contains("F")){
	System.out.print("c");
}
if (ans.contains("g") || ans.contains("G")){
	System.out.print("b");
}
if (ans.contains("h") || ans.contains("H")){
	System.out.print("a");
}
if (ans.contains("I") || ans.contains("i")){
	System.out.print("p");
}
if (ans.contains("j") || ans.contains("J")){
	System.out.print("o");
}
if (ans.contains("k") || ans.contains("K")){
	System.out.print("n");
}
if (ans.contains("l") || ans.contains("L")){
	System.out.print("m");
}
if (ans.contains("m") || ans.contains("M")){
	System.out.print("l");
}
if (ans.contains("n") || ans.contains("N")){
	System.out.print("k");
}
if (ans.contains("o") || ans.contains("O")){
	System.out.print("j");
}
if (ans.contains("p") || ans.contains("P")){
	System.out.print("i");
}
if (ans.contains("q") || ans.contains("Q")){
	System.out.print("x");
}
if (ans.contains("r") || ans.contains("R")){
	System.out.print("w");
}
if (ans.contains("s") || ans.contains("S")){
	System.out.print("v");
}
if (ans.contains("t") || ans.contains("T")){
	System.out.print("u");
}
if (ans.contains("u") || ans.contains("U")){
	System.out.print("t");
}
if (ans.contains("v") || ans.contains("V")){
	System.out.print("s");
}
if (ans.contains("w") || ans.contains("W")){
	System.out.print("r");
}
if (ans.contains("x") || ans.contains("X")){
	System.out.print("q");
}
if (ans.contains("y") || ans.contains("Y")){
	System.out.print("z");
}
if (ans.contains("z") || ans.contains("Z")){
	System.out.print("y");
}
if (ans.contains("0")){
	System.out.print(" |Space| ");
}

}
 }

Thank you so much for your help