Java 中的字符 getType()方法，带示例
原文:https://www . geesforgeks . org/character-gettype-method-in-Java-with-examples/
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The Character.getType(char ch) is an inbuilt method in java that returns a value indicating a character’s general category. This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the getType(int) method.
语法:
java public static int getType(char ch)参数:该方法接受字符数据类型的一个参数 ch ，该参数是指要测试的字符。
返回值:该方法返回一个整数类型的值，代表字符的一般类别。
下面的程序说明了 Character.getType(char ch)方法的使用: 程序 1:
```java 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 ); } } ```
Output:
```java Category of K is 1 Category of % is 24
```
程序 2:
```java 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); } } ```
Output:
```java Category of T is 1 Category of ^ is 27
```
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The java.lang.Character getType(int codePoint) is similar to previous method in all the manner, this method can handle supplementary characters.
语法:
```java public static int getType(int codePoint)
```
参数:该方法接受整数数据类型的单个参数码点，并引用要测试的字符(Unicode 码点)。
返回值:这个方法返回一个 int 类型的值，代表字符的一般类别。
以下程序演示了上述方法: 程序 1:
```java // 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); } } ```
Output:
```java Category of c1 is 9 Category of c1 is 2
```
程序 2:
```java // 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); } } ```
Output:
```java Category of c1 is 2 Category of c1 is 2
```
参考:https://docs . Oracle . com/javase/7/docs/API/Java/lang/character . html # getType(char)
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