final int MAXSIZE=10; String[] arr=new String[MAXSIZE]; String str="aaa;bbb;ccc;dd"; StringTokenizer st=new StringTokenizer(str,";"); int i=0; while(st.hasMoreTokens()){ arr[i]=st.nextToken(); i++; }
String[] arr=str.split(";"); 这样最安逸
我的为什么没有split函数呢?
TO NetSniffer(扑克): 这样不好,不要用数组,这些长度是未知的,应该用List。另外,优先用for循环而不是while循环。 改一下: String str="aaa;bbb;ccc;dd"; final List result = new ArrayList(); for(StringTokenizer st=new StringTokenizer(str,";"); st.hasMoreTokens(); ) { result.add(st.nextToken()); } 如果要数组: String[] arr = (String[])result.toArray(new String[0]);
public class StringTokenizer extends Object implements Enumeration The string tokenizer class allows an application to break a string into tokens. The tokenization method is much simpler than the one used by the StreamTokenizer class. The StringTokenizer methods do not distinguish among identifiers, numbers, and quoted strings, nor do they recognize and skip comments. The set of delimiters (the characters that separate tokens) may be specified either at creation time or on a per-token basis. An instance of StringTokenizer behaves in one of two ways, depending on whether it was created with the returnDelims flag having the value true or false: If the flag is false, delimiter characters serve to separate tokens. A token is a maximal sequence of consecutive characters that are not delimiters. If the flag is true, delimiter characters are themselves considered to be tokens. A token is thus either one delimiter character, or a maximal sequence of consecutive characters that are not delimiters. A StringTokenizer object internally maintains a current position within the string to be tokenized. Some operations advance this current position past the characters processed.A token is returned by taking a substring of the string that was used to create the StringTokenizer object. The following is one example of the use of the tokenizer. The code: StringTokenizer st = new StringTokenizer("this is a test"); while (st.hasMoreTokens()) { println(st.nextToken()); }
不过正则表达式有点烦
String[] arr=new String[MAXSIZE];
String str="aaa;bbb;ccc;dd";
StringTokenizer st=new StringTokenizer(str,";");
int i=0;
while(st.hasMoreTokens()){
arr[i]=st.nextToken();
i++;
}
这样最安逸
这样不好,不要用数组,这些长度是未知的,应该用List。另外,优先用for循环而不是while循环。
改一下:
String str="aaa;bbb;ccc;dd";
final List result = new ArrayList();
for(StringTokenizer st=new StringTokenizer(str,";"); st.hasMoreTokens(); ) {
result.add(st.nextToken());
}
如果要数组:
String[] arr = (String[])result.toArray(new String[0]);
extends Object
implements Enumeration
The string tokenizer class allows an application to break a string into tokens. The tokenization method is much simpler than the one used by the StreamTokenizer class. The StringTokenizer methods do not distinguish among identifiers, numbers, and quoted strings, nor do they recognize and skip comments. The set of delimiters (the characters that separate tokens) may be specified either at creation time or on a per-token basis. An instance of StringTokenizer behaves in one of two ways, depending on whether it was created with the returnDelims flag having the value true or false: If the flag is false, delimiter characters serve to separate tokens. A token is a maximal sequence of consecutive characters that are not delimiters.
If the flag is true, delimiter characters are themselves considered to be tokens. A token is thus either one delimiter character, or a maximal sequence of consecutive characters that are not delimiters.
A StringTokenizer object internally maintains a current position within the string to be tokenized. Some operations advance this current position past the characters processed.A token is returned by taking a substring of the string that was used to create the StringTokenizer object. The following is one example of the use of the tokenizer. The code: StringTokenizer st = new StringTokenizer("this is a test");
while (st.hasMoreTokens()) {
println(st.nextToken());
}
prints the following output: this
is
a
test