Java CollationElementIterator setOffset()用法及代码示例

java.text.CollationElementIterator类的setOffset()方法用于将迭代器的光标设置为作为参数传递的特定索引。

用法:

public void setOffset(int newOffset)

参数：此方法采用整数值newOffset，此时必须设置光标。

返回值：此方法无返回值。

下面是说明setOffset()方法的示例：

范例1：

// Java program to demonstrate 
// setOffset() method 
  
import java.text.*; 
import java.util.*; 
import java.io.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
        // creating and intiallizing testString 
        String test = "Code Geeks 123"; 
  
        // creating and intiallizing 
        // RuleBasedCollator object 
        RuleBasedCollator rbc 
            = (RuleBasedCollator)(Collator.getInstance()); 
  
        // creating and intiallizing 
        // CollationElementIterator 
        CollationElementIterator cel 
            = rbc.getCollationElementIterator(test); 
  
        // setting offset to index 4 
        // using setOffset() method 
        cel.setOffset(4); 
  
        // display the result 
        System.out.println("current offset is "
                           + cel.getOffset()); 
    } 
}

输出：

current offset is 4

范例2：

// Java program to demonstrate 
// setOffset() method 
  
import java.text.*; 
import java.util.*; 
import java.io.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
        // creating and intiallizing testString 
        String test = "GeeksForGeeks"; 
  
        // creating and intiallizing 
        // RuleBasedCollator object 
        RuleBasedCollator rbc 
            = (RuleBasedCollator)(Collator.getInstance()); 
  
        // creating and intiallizing 
        // CollationElementIterator 
        CollationElementIterator cel 
            = rbc.getCollationElementIterator(test); 
  
        // after call of setOffset() method 
        // all next() method will become redundent 
        cel.next(); 
        cel.next(); 
        cel.next(); 
        cel.next(); 
  
        // setting cursor of iterator to index 0 
        // using setOffset() method 
        cel.setOffset(0); 
  
        // display the result 
        System.out.println("current offset is "
                           + cel.getOffset()); 
    } 
}

输出：

current offset is 0

参考： https://docs.oracle.com/javase/9/docs/api/java/text/CollationElementIterator.html#setOffset-int-

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注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 CollationElementIterator setOffset() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。