使用分隔符将Java字符串分割成两个字符串

I have a string that has the value of name:score. I want to split the string into two strings, string a with the value of name and string b with the value of score.

我有一个值为name的字符串:score。我想把字符串分割成两个字符串，字符串a的值是name，字符串b的值是score。

What is the correct function/syntax to do this?

正确的函数/语法是什么?

I have looked at string.split, but can not find the actual syntax to return the data into two separate strings.

我看过弦。拆分，但无法找到将数据返回到两个独立字符串的实际语法。

7 个解决方案

#1

The split function is suitable for that :

分割函数适用于:

String[] str_array = "name:score".split(":");
String stringa = str_array[0]; 
String stringb = str_array[1];

#2

You need to look into Regular Expressions:

你需要观察正则表达式:

String[] s = myString.split("\\:"); // escape the colon just in case as it has special meaning in a regex

Or you can also use a StringTokenizer.

或者你也可以使用StringTokenizer。

#3

Use:

使用:

String [] stringParts = myString.split(":");

#4

String row = "name:12345";
String[] columns = row.split(":");
assert columns.length == 2;
String name = columns[0];
int score = Integer.parseInt(columns[1]);

#5

Split creates an array with your strings in it:

Split创建一个包含您的字符串的数组:

String input = "name:score";
final String[] splitStringArray = input.split(":");
String a = splitStringArray[0];
String b = splitStringArray[1];

#6

$ cat Split.java

猫Split.java美元

public class Split {
    public static void main(String argv[]) {
        String s = "a:b";
        String res[] = s.split(":");
        System.out.println(res.length);
        for (int i = 0; i < res.length; i++)
            System.out.println(res[i]);
    }
}

$ java Split

美元java分裂

2
a
b

#7

what if you have something like this a:1:2 name = a:1??

如果你有像a:1:2的名字= a:1?

 private String extractName(String str) {
    String[] split = str.split(":");
    return str.replace(split[split.length - 1], "");
  }

  private int extractId(String str){
    String[] split  = str.split(":");
    return  Integer.parseInt(CharMatcher.DIGIT.retainFrom(split[split.length-1]));
  }

#1