Java如何迭代字符串的子集？
package org.nhooo.example.text;
import java.text.CharacterIterator;
import java.text.StringCharacterIterator;
public class IterateSubstringExample {
private static final String text =
"How razorback-jumping frogs can level six piqued gymnasts";
public static void main(String[] args) {
CharacterIterator it = new StringCharacterIterator(text, 4, 27, 5);
//在此循环中，我们仅迭代了在
//上面的StringCharacterIterator。它从4的索引中读取
//字符串，最多27个字符。所以只需要以下内容
//字符串“剃刀跳蛙”"razorback-jumping frogs"
for (char ch = it.first(); ch != CharacterIterator.DONE; ch = it.next()) {
System.out.print(ch);
}
}
}
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