java 拆分没有分隔符的字符串
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Splitting a string with no delimiter
提问by Adegoke A
I want to split a string like "My dog" into an array of:
我想将像“My dog”这样的字符串拆分为以下数组：
| M | y | space char will be in here | D | o | g |
Here is my code:
这是我的代码：
String []in_array;
input = sc.next();
in_array = input.split(""); //Note this there is no delimiter
for(int k=1; k < in_array.length; k++){
System.out.print(" "+in_array[k]);
}
EDIT:
编辑：
It only prints out "My"
它只打印出“我的”
回答by Aleksander Blomsk?ld
java.lang.String has a toCharArray()that does exactly that.
java.lang.String 有一个toCharArray()就是这样做的。
回答by Peter Lawrey
If all you see if "My", that is all you have in your inputstring. Did you use Scanner.next() ?
如果您只看到“我的”，那么这就是您的input字符串中的全部内容。你用过 Scanner.next() 吗？
for(String s : "My dog".split(""))
System.out.println(s);
prints
印刷
{empty line}
M
y
d
o
g
回答by Bohemian
You only need one line of code for this:
为此，您只需要一行代码：
String[] arr = input.split("(?<=.)");
The regex says to split afterevery character, so unlike splitting on blank, you don't get an initial blank element from the split.
正则表达式表示在每个字符后拆分，因此与在空白上拆分不同，您不会从拆分中获得初始空白元素。
回答by Saurabh
Try Following Java code
尝试遵循 Java 代码
String sourceString="My Dog";
char[] varArr = sourceString.trim().toCharArray();
for (char c : varArr) {
System.out.print(c+" | ");
}
