Java Bidi getLevelAt()方法及实例

java.text.Bidi 类的 getLevelAt() 方法是用来提供bidi文本行中特定点上的特定字符的解析水平。

语法

public int getLevelAt(int offset)

参数：该方法获取需要解决的级别的文本行中存在的字符的偏移量。
返回值： 该方法为偏移量作为参数的特定字符提供解决的级别，如果偏移量小于零或大于整个bidi文本的长度，那么它只是返回相等的基本级别。下面是说明 getLevelAt() 方法的例子：

例1 :

// Java program to demonstrate
// getLevelAt() method
 
import java.text.*;
import java.util.*;
import java.io.*;
 
public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing Bidi
        Bidi bidi = new Bidi("Geeks for Geeks", 0);
 
        int offset = 3;
 
        // getting resolved level of Character
        // using getLevelAt() method
        int status = bidi.getLevelAt(offset);
 
        // display the result
        if (offset > 0
            && (bidi.getLength()) > offset)
            System.out.println(
                "resolved level of the "
                + "Character at offset "
                + offset + " is "
                + status);
        else
            System.out.println(
                "base direction level is "
                + status);
    }
}

输出

resolved level of the Character at offset 3 is 0

例2 :

// Java program to demonstrate
// getLevelAt() method
 
import java.text.*;
import java.util.*;
import java.io.*;
 
public class GFG {
    public static void main(String[] argv)
    {
        // creating and initializing Bidi
        Bidi bidi = new Bidi("Tajmahal", 0);
 
        int offset = -3;
 
        // getting resolved level of Character
        // using getLevelAt() method
        int status = bidi.getLevelAt(offset);
 
        // display the result
        if (offset > 0
            && (bidi.getLength()) > offset)
            System.out.println(
                "resolved level of the "
                + "Character at offset "
                + offset + " is "
                + status);
        else
            System.out.println(
                "base direction level is "
                + status);
    }
}