Java CollationElementIterator setOffset()用法及代碼示例

java.text.CollationElementIterator類的setOffset()方法用於將迭代器的光標設置為作為參數傳遞的特定索引。

用法:

public void setOffset(int newOffset)

參數：此方法采用整數值newOffset，此時必須設置光標。

返回值：此方法無返回值。

下麵是說明setOffset()方法的示例：

範例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()); 
    } 
}

輸出：

current offset is 4

範例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()); 
    } 
}

輸出：

current offset is 0

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

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注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 CollationElementIterator setOffset() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。