Java 中的 Character.isSpaceChar()方法
原文:https://www . geesforgeks . org/character-isspacecharchar-ch-method-Java/
java . lang . character . IsSpaceChar(char ch)是 Java 中的一个内置方法，用于确定指定的字符是否是 Unicode 空格字符。当且仅当 Unicode 标准将字符指定为空格字符时，该字符才被视为空格字符。
如果角色的一般类别类型是下列任何一种，则此方法返回 true？
- Space _ separator
- Line _ separator
- Paragraph _ separator
语法:
public static boolean isSpaceChar(char ch)
参数:该函数接受一个强制参数 ch ，该参数指定要测试的字符。
返回值:这个方法返回一个布尔值。如果字符是空格字符，该值为真，否则为假。
下面的程序说明了 Character.isSpaceChar() 方法:
程序 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 = '{content}apos;, 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);
}
}
输出:
c1 is a space character? false
c2 is a space character? false
程序二:
// 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);
}
}
输出:
c1 is a space character? false
c2 is a space character? true
参考:https://docs . Oracle . com/javase/7/docs/API/Java/lang/character . html # isSpaceChar(char)
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