報告字母表中的

Question

匹配所有字符的短語中的所有字符的狀態我在Java中，下面的方法：

void searchPhrase(String[] phrase){ 
     searchResult = new int[phrase.length]; 
     int j=0, k=0; 
     for (int i=0; i<frase.length;i++) 
      if (!phrase[i].equals(alphabet[k])){ 
       System.out.println("\nLetter "+phrase[i]+" was not found when comparing it to "+alphabet[k]); 
       k++; 
      } 
      else{    
       System.out.println("\nLetter "+phrase[i]+" was found when comparing it to "+alphabet[k]); 
       searchResult[j] = i; 
       k=0; 
      } 
    } 

我有兩個字符串數組，短語和字母。短語是任何給定的短語，並且字母表包含從A到Z的字母表。 我需要接收短語的方法，例如：「HELLO STACK」。然後，它必須將每個字母與字母表進行比較，如下所示：

H == A？號碼
H == B？
...
H == H？是

然後，searchResult [0] = 7，因爲短語[i]中的字母H等於字母表[7]。現在，它被發現字母H，它應該繼續與字母E，等等。 不幸的是，我的代碼是這樣做的：

H == A？號碼
E == B？ No.
L == C？號碼
L == D？號碼
O == E？
（空格） == F？號碼
S == G？它繼續，直到它完成「HELLO堆棧」這個詞組。如果沒有在字母表中找到，我能做些什麼來阻止它進入下一封信？ 非常感謝！

Answer 1

如果我明白你想要做什麼，代碼應該是：

void searchPhrase(String[] phrase){ 
    searchResult = new int[phrase.length]; 
    int j=0; 
    for (int i=0; i<frase.length;i++){ 
     for (int k=0; k<alphabet.length;k++){   
      if (!phrase[i].equals(alphabet[k])){ 
       System.out.println("\nLetter "+phrase[i]+" was not found when comparing it to "+alphabet[k]); 
       k++; 
      } 
      else{    
       System.out.println("\nLetter "+phrase[i]+" was found when comparing it to "+alphabet[k]); 
       searchResult[j] = i; 
       k=0; 
       break; 
      } 
     } 
    } 
} 

我沒有測試代碼，但它應該工作。

Answer 2

爲了得到這個邏輯，use another (nested) loop。

外層循環遍歷短語中的字符（如完成），內層循環迭代字母表中的字符。當內循環（在字母表上循環）因匹配當前短語字符而終止時，「停止進入下一個字母」被完成。然後外層循環的下一次迭代繼續，等等，直到迭代完成。

使用break（示例代碼也顯示使用嵌套循環）在內循環內使用if時會很有幫助。另外，根據賦值的不同，當短語中的字符不在字母表中時，可能需要處理該案例。使用常規循環完成任務後，請參閱ehanced for loops，該代碼可以清理代碼，因爲不需要索引。

Answer 3

如果你不想繼續，如果phrase[n] != alphabet[k]那麼這段話總是需要「ABC ......」因爲如果你使用HELLO STACK的第一個字母是H這是!= alphabet[0](A)。

，你可以在這裏使用一個嵌套循環

是你的那句數組？你有幾句話嗎？如果沒有這將是功能

我寧願讓字母排列爲char[] alphabet

void searchPhrase(String phrase){ 

//string length() 
outer: 
for(int x = 0 ; x < phrase.length() ; x++){ 
    //char length 
    inner: 
    for(int y = 0 ; y < alphabet.length ; y++){ 

     if(phrase.charAt(x) == alphabet[y]){ 
      //alphabet found 
     }else{ 
      //not found 
     break outer; 
     } 
    } 
    } 
} 

Answer 4

這是你想要的嗎？

void searchPhrase(String[] phrase){ 
      searchResult = new int[phrase.length]; 
      int j=0, m=-1, n=-1; 
      for (int i=0; i<phrase.length;i++) 
      { 
       for (int k=0; i<26;i++) 
       { 
       if (phrase[i].equals(alphabet[k])) 
       { 
       searchPhrase[i] = k;  
       System.out.println("\nLetter "+phrase[i]+" was found when comparing it to"+alphabet[k]); 
       } 
       } 
      } 

Answer 5

工作示例，同時使用字符串數組來匹配

public static void searchPhrase(String[] phrase) { 
     int[] searchResult = new int[phrase.length]; 
     String[] alphabet = "abcdefghijklmnopqrstuvwxyz".split(""); 
     int j = 0; 
     for (int i = 0 ; i < phrase.length ; i++) 
      for (int k = 0 ; k < alphabet.length ; k++) { 
       if (!phrase[i].toLowerCase().equals(alphabet[k])) { 
        System.out.println("\nLetter " + phrase[i] + " was not found when comparing it to " + alphabet[k]); 
       } else { 
        System.out.println("\nLetter " + phrase[i] + " was found when comparing it to " + alphabet[k]); 
        searchResult[j] = i; 
        break; 
       } 
      } 
    } 

輸出

Letter H was not found when comparing it to 

Letter H was not found when comparing it to a 

Letter H was not found when comparing it to b 

Letter H was not found when comparing it to c 

Letter H was not found when comparing it to d 

Letter H was not found when comparing it to e 

Letter H was not found when comparing it to f 

Letter H was not found when comparing it to g 

Letter H ** was found when comparing it to ** h 

Letter E was not found when comparing it to 

Letter E was not found when comparing it to a 

Letter E was not found when comparing it to b 

Letter E was not found when comparing it to c 

Letter E was not found when comparing it to d 

Letter E ** was found when comparing it to ** e 

Letter L was not found when comparing it to 

Letter L was not found when comparing it to a 

Letter L was not found when comparing it to b 

Letter L was not found when comparing it to c 

Letter L was not found when comparing it to d 

Letter L was not found when comparing it to e 

Letter L was not found when comparing it to f 

Letter L was not found when comparing it to g 

Letter L was not found when comparing it to h 

Letter L was not found when comparing it to i 

Letter L was not found when comparing it to j 

Letter L was not found when comparing it to k 

Letter L ** was found when comparing it to ** l 

Letter L was not found when comparing it to 

Letter L was not found when comparing it to a 

Letter L was not found when comparing it to b 

Letter L was not found when comparing it to c 

Letter L was not found when comparing it to d 

Letter L was not found when comparing it to e 

Letter L was not found when comparing it to f 

Letter L was not found when comparing it to g 

Letter L was not found when comparing it to h 

Letter L was not found when comparing it to i 

Letter L was not found when comparing it to j 

Letter L was not found when comparing it to k 

Letter L ** was found when comparing it to ** l 

Letter O was not found when comparing it to 

Letter O was not found when comparing it to a 

Letter O was not found when comparing it to b 

Letter O was not found when comparing it to c 

Letter O was not found when comparing it to d 

Letter O was not found when comparing it to e 

Letter O was not found when comparing it to f 

Letter O was not found when comparing it to g 

Letter O was not found when comparing it to h 

Letter O was not found when comparing it to i 

Letter O was not found when comparing it to j 

Letter O was not found when comparing it to k 

Letter O was not found when comparing it to l 

Letter O was not found when comparing it to m 

Letter O was not found when comparing it to n 

Letter O ** was found when comparing it to ** o 

Letter S was not found when comparing it to 

Letter S was not found when comparing it to a 

Letter S was not found when comparing it to b 

Letter S was not found when comparing it to c 

Letter S was not found when comparing it to d 

Letter S was not found when comparing it to e 

Letter S was not found when comparing it to f 

Letter S was not found when comparing it to g 

Letter S was not found when comparing it to h 

Letter S was not found when comparing it to i 

Letter S was not found when comparing it to j 

Letter S was not found when comparing it to k 

Letter S was not found when comparing it to l 

Letter S was not found when comparing it to m 

Letter S was not found when comparing it to n 

Letter S was not found when comparing it to o 

Letter S was not found when comparing it to p 

Letter S was not found when comparing it to q 

Letter S was not found when comparing it to r 

Letter S ** was found when comparing it to ** s 

Letter T was not found when comparing it to 

Letter T was not found when comparing it to a 

Letter T was not found when comparing it to b 

Letter T was not found when comparing it to c 

Letter T was not found when comparing it to d 

Letter T was not found when comparing it to e 

Letter T was not found when comparing it to f 

Letter T was not found when comparing it to g 

Letter T was not found when comparing it to h 

Letter T was not found when comparing it to i 

Letter T was not found when comparing it to j 

Letter T was not found when comparing it to k 

Letter T was not found when comparing it to l 

Letter T was not found when comparing it to m 

Letter T was not found when comparing it to n 

Letter T was not found when comparing it to o 

Letter T was not found when comparing it to p 

Letter T was not found when comparing it to q 

Letter T was not found when comparing it to r 

Letter T was not found when comparing it to s 

Letter T ** was found when comparing it to ** t 

Letter A was not found when comparing it to 

Letter A ** was found when comparing it to ** a 

Letter C was not found when comparing it to 

Letter C was not found when comparing it to a 

Letter C was not found when comparing it to b 

Letter C ** was found when comparing it to ** c 

Letter K was not found when comparing it to 

Letter K was not found when comparing it to a 

Letter K was not found when comparing it to b 

Letter K was not found when comparing it to c 

Letter K was not found when comparing it to d 

Letter K was not found when comparing it to e 

Letter K was not found when comparing it to f 

Letter K was not found when comparing it to g 

Letter K was not found when comparing it to h 

Letter K was not found when comparing it to i 

Letter K was not found when comparing it to j 

Letter K ** was found when comparing it to ** k