Java 中的子字符串 - 如何断开句子并另存为不同的字符串

Question

我想将句子的一部分（一个字符串）保存到另一个字符串中。

例如：

String s = " 到 1889 年，由于问候语和电话之间的关联，中央电话交换运营商被称为 'hello-girls' "

我想把"By 1889, central telephone exchange operators were known as"存成一个字符串

和

"hello-girls' due to the association between the greeting and the telephone"变成另一个.

如何操作？

Answer 1

使用下面的代码

    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);

看到这个ideone https://ideone.com/iB5quw

Answer 2

尝试：

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

输出：

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

文档：

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 ";

第一种方式：

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"

第二种方式：

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

如果这是因为单词 'hello-girls' 你可以这样做：

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

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

请注意，firstPart 字符串将以空 space 结尾。您可以通过更改上面的代码轻松删除它：

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

Java 中的子字符串 - 如何断开句子并另存为不同的字符串

Substring in Java - how to break sentence and save as different strings

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