Java Character isHighSurrogate() 方法

2024 年 11 月 6 日 | 阅读 2 分钟

Character 类的 isHighSurrogate(char ch) 方法确定给定值是否为高代理码单元，也称为前导代理码单元。

这些值本身不能用于表示字符，但它们可用于 UTF-16 编码中表示补充字符。

语法

参数

上述方法只需要一个参数

a.) 需要测试的字符值。

返回值

isHighSurrogate(char ch) 方法返回一个布尔值，即，如果字符的值介于 MIN_HIGH_SURROGATE 和 MAX_HIGH_SURROGATE 之间，则返回 true。否则，此方法返回 false。

示例 1

public class JavaCharacterisHighSurrogateExample1 {
	public static void main(String[] args) {
	  // Initialize the characters that need to be tested.
		char c1 = '\ud800';
		char c2 = '\uc71f';
		char c3 = '\u1016';	
	// Check the individual character whether it is 
		boolean result1 = Character.isHighSurrogate(c1);
		boolean result2 = Character.isHighSurrogate(c2);
		boolean result3 = Character.isHighSurrogate(c3);
	// print the result
System.out.println("The first character is a Unicode high-surrogate code unit: "+  result1);
System.out.println("The second character is a Unicode high-surrogate code unit: "+  result2);	
System.out.println("The third character is a Unicode high-surrogate code unit: "+  result3);	
	}
}

输出

The first character is a Unicode high-surrogate code unit: true
The second character is a Unicode high-surrogate code unit: false
The third character is a Unicode high-surrogate code unit: false

示例 2

public class JavaCharacterisHighSurrogateExample2 {
	public static void main(String args[])
	{
   //Initialize two char value
	  char a1 ='Z';
	  char a2 ='z';
  //Create two object obj1 and obj2.
	  Character obj1 =new Character(a1);   
	  Character obj2 =new Character(a2);   
  //Check whether the given charactesr 'obj' and 'obj2' are isHighSurrogate or not.
	  boolean b1 = obj1.isHighSurrogate(a1);  
	  boolean b2 = obj2.isHighSurrogate(a2);  
  //Print the values.
	  System.err.println("The character 'Z' is a Unicode high-surrogate code unit: "+b1);        
	  System.err.println("The character 'z' is a Unicode high-surrogate code unit: "+b2);        
     }
}

输出

The character 'Z' is a Unicode high-surrogate code unit: false
The character 'z' is a Unicode high-surrogate code unit: false

下一个主题Java-character-isidentifierignorable-method

← 上一个下一个 →

Java Character isHighSurrogate() 方法

语法

参数

返回值

示例 1

示例 2

联系信息

关注我们

教程

面试题

在线编译器

Python

Java

.Net Framework

AI, ML and Data Science

Cloud Technology

B.Tech and MCA

Web Technology

PHP

Software Testing

Technical Interview

Java Interview

Python

Web Interview

Database Interview

B.Tech / MCA

Important Interview

Software Testing Interview

Company Interviews

Online Compilers

Multiple Choice Questions

Java EnumMap

Java DriverManager

Java ThreadLocal

Java StringBuilder

Java StringBuffer

Java Short

Java Float

Java HashSet

Java ThreadLocalRandom

Java ThreadGroup

Java Double

Java Throwable

Java PriorityQueue

Java Matcher

Java 方法

Java 枚举

Java TreeSet

Java TimeZone

Java System

Java Locale

Java Scanner

Java Random

Java Currency

Java Character

Java Timertask

Java Timer

Java Process

Java Calendar

Java Character isHighSurrogate() 方法

语法

参数

返回值

示例 1

示例 2

相关帖子

Java Character forDigit() 方法

Java Character compare() 方法

Java Character equals() 方法

Java Character isJavaIdentifierPart() 方法

Java Character offsetByCodePoints() 方法

Java Character hashCode() 方法

Java Character.isUpperCase() 方法

Java Character isDefined() 方法

Java Character isSpace() 方法

Java Character isLetter() 方法

订阅 Tpoint Tech

联系信息

关注我们

教程

面试题

在线编译器