作者：zhan168 | 来源：互联网 | 2023-10-13 11:49
Java 中的排序器 next()方法，带示例
原文:https://www . geeksforgeeks . org/collectionelementiterator-next-method-in-Java-with-examples/
Java . text . collectionelementtiterator 类的 next() 方法用于获取下一个 Collator 元素。这个方法将迭代器推到下一个元素并返回它的值。
语法:
参数:该方法不接受任何参数。
返回值:该方法将下一个排序器元素的值作为整数值返回。
以下是说明 next() 方法的示例:
例 1:
// Java program to demonstrate next() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
// creating and initializing testString
String test = "abcd";
// creating and initializing
// RuleBasedCollator object
RuleBasedCollator rbc
= (RuleBasedCollator)(Collator.getInstance());
// creating and initializing
// CollationElementIterator
CollationElementIterator cel
= rbc.getCollationElementIterator(test);
// setting offset to index 4
cel.setOffset(1);
// display the result
System.out.println("current offset before"
+ " calling next() "
+ cel.getOffset());
// getting offset of the next collator element
// using next() method
int value = cel.next();
// display the result
System.out.println("\ncurrent element value"
+ " after calling next() "
+ value);
}
}
输出:
current offset before calling next() 1
current element value after calling next() 5439488
例 2:
// Java program to demonstrate next() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
// creating and initializing testString
String test = "abcd";
// creating and initializing
// RuleBasedCollator object
RuleBasedCollator rbc
= (RuleBasedCollator)(Collator.getInstance());
// creating and initializing
// CollationElementIterator
CollationElementIterator cel
= rbc.getCollationElementIterator(test);
// setting offset to index 4
cel.setOffset(2);
// display the result
System.out.println("current offset before"
+ " calling next() "
+ cel.getOffset());
// getting offset of the next collator element
// using next() method
int value = cel.next();
// display the result
System.out.println("\ncurrent offset after"
+ " calling next() "
+ cel.getOffset());
}
}
输出:
current offset before calling next() 2
current offset after calling next() 3
参考:https://docs . Oracle . com/javase/9/docs/API/Java/text/collectionelementtiterator . html # next–
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