Java 中 Character.getDirectionality()方法，带示例
原文:https://www . geesforgeks . org/character-get directionality-method-in-Java-with-examples/
java . lang . character . getdirectionality()是 Java 中的一个内置方法，它返回给定字符的 Unicode 方向性属性。字符方向性用于计算文本的视觉顺序。未定义的字符值的方向性值是方向性 _ 未定义。此方法无法处理补充字符。为了支持包括补充字符在内的所有 Unicode 字符，请在此方法的参数中传递一个整数。
语法:
public static byte getDirectionality(char ch)
参数:该功能接受一个参数 ch ，该参数为必选项。此参数指定请求方向性属性的字符。参数可以是 int 或 char 数据类型。
返回值:函数返回表示字符值方向性的字节。
下面的程序说明了上述方法:
程序 1:
// Java program to demonstrate the
// Character.getDirectionality() method
// when the passed parameter is an integer
import java.lang.*;
public class gfg {
public static void main(String[] args)
{
// create 2 int primitives ch1 and
// ch2 and assign values to them
int ch1=0x2424, ch2=0x2c61;
// assign directionality of ch1, ch2 to bp1, bp2
byte b1 = Character.getDirectionality(ch1);
byte b2 = Character.getDirectionality(ch2);
System.out.println("Directionality of first primitive is " + b1);
System.out.println("Directionality of first primitive is " + b2);
}
}
输出:
Directionality of first primitive is 13
Directionality of first primitive is 0
程序二:
// Java program to demonstrate the
// Character.getDirectionality() method
// when the passed parameter is a character
import java.lang.*;
public class gfg {
public static void main(String[] args)
{
// create 2 int primitives ch1 and
// ch2 and assign values to them
char ch1 = 'M', ch2 = '\u06ff';
// assign directionality of ch1, ch2 to bp1, bp2
byte b1 = Character.getDirectionality(ch1);
byte b2 = Character.getDirectionality(ch2);
System.out.println("Directionality of first primitive is " + b1);
System.out.println("Directionality of first primitive is " + b2);
}
}
输出:
Directionality of first primitive is 0
Directionality of first primitive is 2
参考:https://docs . Oracle . com/javase/7/docs/API/Java/lang/character . html # getDirectionality(char)
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