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 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
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
StringTokenizer(String);String为想要打散的目标字符串
hasMoreTokens();返回布尔值,true代表还有剩余的片段,反之为false
nextToken();返回字符串值,内容为下一片段
?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