Java Character.isSpaceChar()用法及代碼示例

java.lang.Character.isSpaceChar(char ch)是java中的一個內置方法，該方法確定指定字符是否為Unicode空格字符。當且僅當Unicode標準將其指定為空格字符時，才將其視為空格字符。

如果角色的常規類別類型是以下任意一種，則此方法返回true？

SPACE_SEPARATOR
LINE_SEPARATOR
PARAGRAPH_SEPARATOR

用法:

public static boolean isSpaceChar(char ch)

參數：該函數接受一個強製性參數ch，該參數指定要測試的字符。

返回值：此方法返回一個布爾值。如果字符是空格字符，則值為True；否則為False。

以下示例程序旨在說明Character.isSpaceChar()方法：

示例1:

// Java program to illustrate the 
// Character.isSpaceChar() method 
import java.lang.*; 
  
public class gfg { 
  
    public static void main(String[] args) 
    { 
  
        // create 2 char primitives c1, c2 and assign values 
        char c1 = '$', c2 = '\u2025'; 
  
        // Function to check if the character is a unicode space or not 
        boolean bool1 = Character.isSpaceChar(c1); 
        System.out.println("c1 is a space character? " + bool1); 
  
        // Function to check if the character is a unicode space or not 
        boolean bool2 = Character.isSpaceChar(c2); 
        System.out.println("c2 is a space character? " + bool2); 
    } 
}

輸出：

c1 is a space character? false
c2 is a space character? false

示例2:

// Java program to illustrate the 
// Character.isSpaceChar() method 
import java.lang.*; 
  
public class gfg { 
  
    public static void main(String[] args) 
    { 
  
        // create 2 char primitives 
        // c1, c2 and assign values 
        char c1 = '*', c2 = '\u2028'; 
  
        // Function to check if the character is a unicode space or not 
        boolean bool1 = Character.isSpaceChar(c1); 
        System.out.println("c1 is a space character? " + bool1); 
  
        // Function to check if the character is a unicode space or not 
        boolean bool2 = Character.isSpaceChar(c2); 
        System.out.println("c2 is a space character? " + bool2); 
    } 
}

輸出：

c1 is a space character? false
c2 is a space character? true

參考： https://docs.oracle.com/javase/7/docs/api/java/lang/Character.html#isSpaceChar(char)

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注：本文由純淨天空篩選整理自Twinkl Bajaj大神的英文原創作品 Character.isSpaceChar() method in Java。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。