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Java StringCharacterIterator setIndex()用法及代码示例


Java中java.text.StringCharacterIterator类的setIndex()方法用于设置要由此StringCharacterIterator读取的当前索引。此方法将要设置的索引作为参数,并在该索引处设置此StringCharacterIterator的索引,然后返回该字符。

用法:

public char setIndex(int index)

参数:此方法将要设置的索引作为参数,并设置此StringCharacterIterator的索引。


返回值:此方法返回此方法设置的索引处的字符。

异常:如果指定的索引不在有效范围内(getBeginIndex(),getEndIndex() – 1),则此方法引发IllegalArgumentException。

程序:

// Java program to demonstrate 
// the above method 
  
import java.text.*; 
import java.util.*; 
  
public class StringCharacterIteratorDemo { 
    public static void main(String[] args) 
    { 
  
        StringCharacterIterator 
            stringCharacterIterator 
            = new StringCharacterIterator( 
                "GeeksForGeeks"); 
  
        System.out.println("Current Index: "
                           + stringCharacterIterator 
                                 .getIndex()); 
  
        int index = 5; 
  
        System.out.println("Updated the index to: "
                           + index); 
  
        System.out.println("Character at new current index: "
                           + stringCharacterIterator 
                                 .setIndex(index)); 
    } 
}
输出:
Current Index: 0
Updated the index to: 5
Character at new current index: F

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



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注:本文由纯净天空筛选整理自ShubhamMaurya3大神的英文原创作品 StringCharacterIterator setIndex() 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。