Java中的 RuleBasedCollator getCollationElementIterator(String) 方法
Java.text.RuleBasedCollator 类的getCollationElementIterator ()方法用于获取给定字符串的排序规则元素迭代器对象。
句法:
public CollationElementIterator
getCollationElementIterator(String source)
参数:此方法接受字符串对象作为参数。
返回值:此方法返回给定字符串的排序规则元素迭代器的对象。
下面是说明getCollationElementIterator()方法的示例:
示例 1:
// Java program to demonstrate
// getCollationElementIterator() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
try {
// Creating and initializing
// new simple rule
String simple
= "< a < b < c < d";
// Creating and initializing
// new RuleBasedCollator Object
RuleBasedCollator col
= new RuleBasedCollator(simple);
// Creating and initializing
// the String Object
String str = "ABABCC";
// getting CollationElementIterator Object
// for the given String
// using getCollationElementIterator() method
CollationElementIterator key
= col.getCollationElementIterator(str);
// display result
System.out.println("CollationElementIterator is : "
+ key);
}
catch (ClassCastException e) {
System.out.println("Exception thrown : " + e);
}
catch (ParseException e) {
System.out.println("Exception thrown : " + e);
}
}
}
输出:
CollationElementIterator is : java.text.CollationElementIterator@7d4991ad
示例 2:
// Java program to demonstrate
// getCollationElementIterator() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
try {
// Creating and initializing
// new simple rule
String simple
= "< a < b & a < c";
// Creating and initializing
// new RuleBasedCollator Object
RuleBasedCollator col
= new RuleBasedCollator(simple);
// Creating and initializing the String Object
String str = "GEeks";
// getting CollationElementIterator Object
// for the given String
// using getCollationElementIterator() mehtod
CollationElementIterator key
= col.getCollationElementIterator(str);
// display result
System.out.println("CollationElementIterator is : "
+ key);
}
catch (ClassCastException e) {
System.out.println("Exception thrown : " + e);
}
catch (ParseException e) {
System.out.println("Exception thrown : " + e);
}
}
}
输出:
CollationElementIterator is : java.text.CollationElementIterator@7d4991ad
参考: https://docs.oracle.com/javase/9/docs/api/ Java/text/RuleBasedCollator.html#getCollationElementIterator-java.lang.String-