Java中的子字符串 - 如何將句子分解並保存爲不同的字符串

Question

我想將句子（它是一個字符串）的一部分保存到另一個字符串中。

例如：

的String =「通過1889年，中央電話交換運營商被稱作「你好-女童由於問候和電話之間的關聯」

欲保存「到1889年，中央電話交換運營商被稱爲」成一個字符串

和

「你好，女童因associatio在問候和電話之間「轉換成另一個。

如何做？

Answer 1

嘗試：

int index = s.indexOf("'hello-girls'"); 
System.out.println(s.substring(0, index)); 
System.out.println(s.substring(index)); 

輸出：

By 1889, central telephone exchange operators were known as 
'hello-girls' due to the association between the greeting and the telephone 

文件：

• String substring(int beginIndex, int endIndex)
• int indexOf(int ch)

Answer 2

使用下面的代碼

String s = " By 1889, central telephone exchange operators were known as 'hello-girls' due to the association between the greeting and the telephone "; 
    int index=s.indexOf("'"); 
    String s1=s.substring(0,index); 
    String s2=s.substring(index,s.length()-1); 
    System.out.println(s1); 
    System.out.println(s2); 

看到這個ideone https://ideone.com/iB5quw

Answer 3

String s = " By 1889, central telephone exchange operators " + 
      "were known as 'hello-girls' due to the association " + 
      "between the greeting and the telephone "; 

第一種方式：

String[] strings = s.split("as "); 

String first = strings[0] + "as"; 
// "By 1889, central telephone exchange operators were known as" 

String second = strings[1]; 
// "'hello-girls' due to the association between the greeting and the telephone" 

方式二：

String separator = " as "; 
int firstLength = s.indexOf(separator) + separator.length(); 

String first = s.substring(0, firstLength); 
// "By 1889, central telephone exchange operators were known as" 

String second = s.substring(firstLength); 
// "'hello-girls' due to the association between the greeting and the telephone" 

Answer 4

如果是因爲這個詞的'你好，女孩，你可以這樣做：

int index = s.indexOf("'hello-girls'")); 

String firstPart = s.substring(0, index); 
String secondPart = s.substring(index); 

注意，firstPart字符串將有一個空的空間結束。您可以通過更改上面的代碼輕鬆刪除它：

String firstPart = s.substring(0, index - 1);