2つの文字列を1つの文字列に入力する方法はありますか？

Question

だから私はABabを持っていて、AをACacと置き換え、aをCAca....に置き換えたいとします。私が試したものからの私の出力はとなるはずですACacBCAcab私はこれをバイパスする方法がわかりません。これは、入力されたAcacの小文字のaも変わることがわかります。 2がある理由

import java.util.*; 
public class Nails 
{ 
    public static void main(String[] args) 
    { 
     Scanner i = new Scanner(System.in); 
     String[][] comms = { { "ACac", "CAca" }, { "ADad", "DAda" }, { "AEae", "EAea" }, { "AFaf", "FAfa" }, 
     { "AGag", "GAga" }, { "AHah", "HAha" }, { "AIai", "Iaia" }, { "AJaj", "JAja" }, { "AKak", "KAka" }, 
     { "ALal", "LAla" }, { "AMam", "MAma" }, { "ANan", "NAna" }, { "AOao", "OAoa" }, { "APap", "PApa" }, 
     { "AQaq", "QAqa" }, { "ARar", "RAra" }, { "ASas", "SAsa" }, { "ATat", "TAta" }, { "AUau", "UAua" }, 
     { "AVav", "VAva" }, { "AWaw", "WAwa" }, { "AXax", "XAxa" }, { "AYay", "YAya" }, { "AZaz", "ZAza" } }; 

     String Master = "ABab"; 
     String S = Master; //Slave String 
     String Tmp = S; 
     System.out.println("Amount of Nails: "); 
     int N = i.nextInt(); //Nails 
     if(N < 2) 
     { 
      System.out.println("Sorry, You Must input a number Greater than or Equal to 2"); 
     } 
     if(N == 2) 
     { 
      System.out.println(Master); 
     } 
     else 
     { 
      for(int c = 0; c < N - 2; c++) //C for Counter, subtracting 2 because method wont run if it is <= 2 and 'Comms' starts on 0 which would be 3 Nails 
      { 
       System.out.println(S); 
       S = S.replace("A", Comms[c][0]); 
       S = S.replace("a", Comms[c][1]); 
       System.out.println(S); 
      } 
     } 
    } 
} 

小文字が大文字のコンポジットを表す：私はあなたがhahaを見ることができるようにZにこれらのすべての方法まで入力できるようにしたい、ここに私のコードです各1のエントリに "釘"が追加されました。私はこのパズルの数式ジェネレータを作成できるようにこのプログラムを作っています： Nail Puzzle。ビデオ制作者は、それが役立つ場合は、数学のいくつかについても説明します。おかげさまで

Answer 1

プレースホルダを使用できます。文字をプレースホルダに置き換え、プレースホルダを実際の文字列に置き換えます。

import java.util.*; 

public class Q47028607 { 
    public static void main(String[] args) { 
    Scanner scanner = new Scanner(System.in); 
    String[][] comms = { { "ACac", "CAca" }, { "ADad", "DAda" }, { "AEae", "EAea" }, { "AFaf", "FAfa" }, 
     { "AGag", "GAga" }, { "AHah", "HAha" }, { "AIai", "Iaia" }, { "AJaj", "JAja" }, { "AKak", "KAka" }, 
     { "ALal", "LAla" }, { "AMam", "MAma" }, { "ANan", "NAna" }, { "AOao", "OAoa" }, { "APap", "PApa" }, 
     { "AQaq", "QAqa" }, { "ARar", "RAra" }, { "ASas", "SAsa" }, { "ATat", "TAta" }, { "AUau", "UAua" }, 
     { "AVav", "VAva" }, { "AWaw", "WAwa" }, { "AXax", "XAxa" }, { "AYay", "YAya" }, { "AZaz", "ZAza" } }; 
    String master = "ABab"; 
    System.out.println("Amount of Nails: "); 
    int N = scanner.nextInt(); 
    if (N < 2) { 
     System.out.println("Sorry, You Must input a number Greater than or Equal to 2"); 
    } else if (N == 2) { 
     System.out.println(master); 
    } else { 
     for (int c = 0; c < N - 2; c++) { 
     System.out.println(master); 
     master = master.replace("A", "$1"); 
     master = master.replace("a", "$2"); 
     master = master.replace("$1", comms[c][0]); 
     master = master.replace("$2", comms[c][1]); 
     System.out.println(master); 
     } 
    } 
    scanner.close(); 
    } 
} 

Answer 2

私はディーン徐ような何かをしましたが、私はlitteralyちょうどそれが笑そうここに私の終了コードは他人を変更した後、文字を変更するので考えた：

import java.util.*; 
public class Nails 
{ 
    public static void main(String[] args) 
    { 
     Scanner i = new Scanner(System.in); 
     String[][] Comms = {{"AC1c", "CAc1"}, {"AD1d", "DAd1"}, {"AE1e", "EAe1"}, {"AF1f", "FAf1"}, {"AG1g", "GAg1"}, {"AH1h", "HAh1"}, {"AI1i", "I1i1"}, {"AJ1j", "JAj1"}, {"AK1k", "KAk1"}, {"AL1l", "LAl1"}, {"AM1m", "MAm1"}, {"AN1n", "NAn1"}, {"AO1o", "OAo1"}, {"AP1p", "PAp1"}, {"AQ1q", "QAq1"}, {"AR1r", "RAr1"}, {"AS1s", "SAs1"}, {"AT1t", "TAt1"}, {"AU1u", "UAu1"}, {"AV1v", "VAv1"}, {"AW1w", "WAw1"}, {"AX1x", "XAx1"}, {"AY1y", "YAy1"}, {"AZ1z", "ZAz1"}}; 
     String Master = "ABab"; 
     String S = Master; //Slave String 
     String Tmp = S; 
     System.out.println("Amount of Nails: "); 
     int N = i.nextInt(); //Nails 
     if(N < 2) 
     { 
      System.out.println("Sorry, You Must input a number Greater than or Equal to 2"); 
     } 
     if(N == 2) 
     { 
      System.out.println(Master); 
     } 
     else 
     { 
      for(int c = 0; c < N - 2; c++) //C for Counter, subtracting 2 because method wont run if it is <= 2 and 'Comms' starts on 0 which would be 3 Nails 
      { 
       S = S.replace("A", Comms[c][0]); 
       S = S.replace("a", Comms[c][1]); 
       S = S.replace("1", "a"); 
      } 
      System.out.println(S); 
     } 
    } 
} 

Answer 3

提案::利用StringBuilderの代わりに文字列の文字列に対して複数の操作を行っているので、パフォーマンスとメモリの使用に影響します。 StringBuilderを使用すると、パフォーマンスが向上します。