無法取代java中的某些字符串項目

我希望此函數用字符串數組中的單詞替換'@'和'＃'並輸出一個列表。無法取代java中的某些字符串項目

import java.util.ArrayList; 
import java.util.List; 

public class Test { 

    /** 
    * @param args 
    */ 
    public static void main(String[] args) { 

     String strSpecialties = "hello, test, test2, test3"; 
     strSpecialties.trim(); 
     String []lstSpecialties = strSpecialties.split(","); 

     String newString = "<AggregateColumn AggregateFunction="+"\"Sum\" " +"ID="+"\"siteTotal#\"" + " AggregateColumn="+"\"@\" />"; 

     for(int i=0; i< lstSpecialties.length; i++){ 

      newString = newString.replace("#", lstSpecialties[i]); 
      newString = newString.replace("@", lstSpecialties[i]); 
      System.out.println(newString); 
     } 
    } 
}

輸出繼電器：

<AggregateColumn AggregateFunction="Sum" ID="siteTotalHello" AggregateColumn="Hello" /> 
<AggregateColumn AggregateFunction="Sum" ID="siteTotalHello" AggregateColumn="Hello" /> 
<AggregateColumn AggregateFunction="Sum" ID="siteTotalHello" AggregateColumn="Hello" />

我想要什麼

<AggregateColumn AggregateFunction="Sum" ID="siteTotalHello" AggregateColumn="Hello" /> 
<AggregateColumn AggregateFunction="Sum" ID="siteTotalTest" AggregateColumn="Test" /> 
<AggregateColumn AggregateFunction="Sum" ID="siteTotalTest2" AggregateColumn="Test2" />

來源

2011-05-01 rober71

現在就來試試：

for(int i=0; i< lstSpecialties.length; i++){ 
    String newString = "<AggregateColumn AggregateFunction="+"\"Sum\" "         +"ID="+"\"siteTotal#\"" + " AggregateColumn="+"\"@\" />"; 
    newString = newString.replace("#", lstSpecialties[i]); 
    newString = newString.replace("@", lstSpecialties[i]); 
    System.out.println(newString); 
}

來源

2011-05-01 15:07:23 GuruKulki

這是因爲第一次迭代之後，你已經取代了@s和＃分別只能使用一次，與價值觀。爲了使它正常工作，您需要在for循環中的變量的本地副本。

你的代碼看起來應該像

for(int i=0; i< lstSpecialties.length; i++){ 
    String replaceStr = newString; 

    replaceStr = replaceStr .replace("#", lstSpecialties[i]); 
    replaceStr = replaceStr .replace("@", lstSpecialties[i]); 
    System.out.println(replaceStr); 
}

來源

2011-05-01 15:06:50 Codemwnci

您需要重置newString到它原來是。

以下應爲你工作：

String originalString = "<AggregateColumn AggregateFunction="+"\"Sum\" " +"ID="+"\"siteTotal#\"" + " AggregateColumn="+"\"@\" />"; 

String newString = originalString; 

for(int i=0; i< lstSpecialties.length; i++){ 
    newString = newString.replace("#", lstSpecialties[i]); 
    newString = newString.replace("@", lstSpecialties[i]); 
    System.out.println(newString); 
    newString = originalString; 
}

來源

2011-05-01 15:07:45 AbdullahC

將內環路初始化：

import java.util.ArrayList; 
import java.util.List; 

public class Test { 

    /** 
    * @param args 
    */ 
    public static void main(String[] args) { 

     String strSpecialties = "hello, test, test2, test3"; 
     strSpecialties.trim(); 
     String []lstSpecialties = strSpecialties.split(","); 

     for(int i=0; i< lstSpecialties.length; i++){ 

      String newString = "<AggregateColumn AggregateFunction="+"\"Sum\" " +"ID="+"\"siteTotal#\"" + " AggregateColumn="+"\"@\" />"; 

      newString = newString.replace("#", lstSpecialties[i]); 
      newString = newString.replace("@", lstSpecialties[i]); 
      System.out.println(newString); 
     } 
    } 
}

來源

2011-05-01 15:08:02

你需要用「newString」在每個迭代一個新的副本重新開始。

目前你做

for(int i=0; i< lstSpecialties.length; i++){ 

     newString = newString.replace("#", lstSpecialties[i]);

這裏newString不再包含 '＃' 字符

來源

2011-05-01 15:08:57

無法取代java中的某些字符串項目

回答

相關問題