Java 中 Character.isHighSurrogate()方法，带示例
原文:https://www . geeksforgeeks . org/character-ishightsurrogate-method-in-Java-with-examples/
java . lang . character . IshighSuperation()是 Java 中的一个内置方法，它确定给定的字符值是否是 Unicode 高替代代码单元(也称为前导替代代码单元)。这些值本身并不表示字符，而是用于表示 UTF-16 编码中的补充字符。
语法:
public static boolean isHighSurrogate(char ch)
参数:该函数接受一个指定待测值的强制参数 ch 。
返回值:函数返回一个布尔值。如果字符值在最小 _ 高 _ 代理和最大 _ 高 _ 代理之间(含这两个值)，返回的值为真，否则为假。
下面的程序举例说明了 Character.isHighSurrogate()方法:
程序 1:
// Java program to illustrate the
// Character.isHighSurrogate() method
import java.lang.*;
public class gfg {
public static void main(String[] args)
{
// create 2 char primitives c1, c2
char c1 = '\u0a4f', c2 = '\ud8b4';
// assign isHighSurrogate results of
// c1, c2 to boolean primitives bool1, bool2
boolean bool1 = Character.isHighSurrogate(c1);
System.out.println("c1 is a Unicode"+
"high-surrogate code unit ? " + bool1);
boolean bool2 = Character.isHighSurrogate(c2);
System.out.println("c2 is a Unicode"+
"high-surrogate code unit ? " + bool2);
}
}
Output:
c1 is a Unicodehigh-surrogate code unit ? false
c2 is a Unicodehigh-surrogate code unit ? true
程序 2:
// Java program to illustrate the
// Character.isHighSurrogate() method
import java.lang.*;
public class gfg {
public static void main(String[] args)
{
// create 2 char primitives c1, c2
char c1 = '\u0b9f', c2 = '\ud5d5';
// assign isHighSurrogate results of
// c1, c2 to boolean primitives bool1, bool2
boolean bool1 = Character.isHighSurrogate(c1);
System.out.println("c1 is a Unicode" +
"high-surrogate code unit ? " + bool1);
boolean bool2 = Character.isHighSurrogate(c2);
System.out.println("c2 is a Unicode" +
"high-surrogate code unit ? " + bool2);
}
}
Output:
c1 is a Unicodehigh-surrogate code unit ? false
c2 is a Unicodehigh-surrogate code unit ? false
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