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  1. import java.util.Scanner;
  2. class Ideone {
  3.   public static void main(String[] args) {
  4.     Scanner input = new Scanner(System.in);
  5.     System.out.println("Enter the String Name to encrypt:");
  6.     String str = input.nextLine();
  7.     input.close();
  8.     str = replaceString(str);
  9.     System.out.println(str);
  10.   }
  11.  
  12.   public static String replaceString(String str) {
  13.     char[] tmp = str.toCharArray();
  14.     for (int i = 0; tmp.length > i; i++) {
  15.       if ('a' == tmp[i]) {
  16.         tmp[i] = 'k';
  17.       } else
  18.       if ('b' == tmp[i]) {
  19.         tmp[i] = 'n';
  20.       }
  21.     }
  22.     return new String(tmp);
  23.   }
  24. }
Success #stdin #stdout 0.15s 321280KB
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stdin
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banana
stdout
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Enter the String Name to encrypt:
nknknk
https://ideone.com/XfcVcl
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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