Java Character getType()用法及代碼示例

Character.getType(char ch)是Java中的一種內置方法，它返回一個指示字符的常規類別的值。此方法不能處理補充字符。要支持所有Unicode字符(包括補充字符)，請使用getType(int)方法。

用法:

public static int getType(char ch)

參數：該方法接受字符數據類型的一個參數ch，該參數ch是要測試的字符。

返回值：此方法返回一個整數類型的值，表示字符的常規類別。

以下示例程序旨在說明Character.getType(char ch)方法的使用：
示例1:

import java.lang.*; 
  
public class gfg { 
  
   public static void main(String[] args) { 
  
  
      // Create 2 character primitives ch1, ch2 and assigning values 
      char c1 = 'K', c2 = '%'; 
  
      // Assign getType values of c1, c2 to int primitives int1, int2 
      int int1 = Character.getType(c1); 
      int int2 = Character.getType(c2); 
  
      String str1 = "Category of " + c1 + " is " + int1; 
      String str2 = "Category of " + c2 + " is " + int2; 
  
      System.out.println( str1 ); 
      System.out.println( str2 ); 
   } 
}

輸出：

Category of K is 1
Category of % is 24

示例2:

import java.lang.*; 
  
public class gfg { 
  
   public static void main(String[] args) { 
  
  
      // Create 2 character primitives ch1, ch2 and assigning values 
      char c1 = 'T', c2 = '^'; 
  
      // Assign getType values of c1, c2 to inyt primitives int1, int2 
     int int1 = Character.getType(c1); 
     int int2 = Character.getType(c2); 
  
      String str1 = "Category of " + c1 + " is " + int1; 
      String str2 = "Category of " + c2 + " is " + int2; 
  
      System.out.println(str1); 
      System.out.println(str2); 
   } 
}

輸出：

Category of T is 1
Category of ^ is 27

java.lang.Character getType(int codePoint)在所有方麵都類似於先前的方法，該方法可以處理補充字符。

用法:

public static int getType(int codePoint)

參數：該方法接受整數數據類型的單個參數codePoint，表示要測試的字符(Unicode代碼點)。

返回值：此方法返回一個int類型的值，表示字符的常規類別。

下麵的程序演示了上述方法：
示例1:

// Java program to demonstrate 
// the above method 
import java.lang.*; 
  
public class gfg { 
  
   public static void main(String[] args) { 
  
      // int primitives c1, c2 
      int c1 = 0x0037, c2 = 0x016f; 
  
  
      // Assign getType values of c1, c2 to int primitives int1, int2 
     int int1 = Character.getType(c1); 
     int int2 = Character.getType(c2); 
  
      // Print int1, int2 values 
      System.out.println(  "Category of c1 is " + int1); 
      System.out.println(  "Category of c1 is " + int2); 
   } 
}

輸出：

Category of c1 is 9
Category of c1 is 2

示例2:

// Java program to demonstrate 
// the above method 
import java.lang.*; 
  
public class gfg { 
  
   public static void main(String[] args) { 
  
      // int primitives c1, c2 
      int c1 = 0x0135, c2 = 0x015f; 
  
  
      // Assign getType values of c1, c2 to int primitives int1, int2 
     int int1 = Character.getType(c1); 
     int int2 = Character.getType(c2); 
  
      // Print int1, int2 values 
      System.out.println(  "Category of c1 is " + int1); 
      System.out.println(  "Category of c1 is " + int2); 
   } 
}

輸出：

Category of c1 is 2
Category of c1 is 2

參考： https://docs.oracle.com/javase/7/docs/api/java/lang/Character.html#getType(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 getType() Method in Java with examples。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。