ObjectStreamField类的getTypeCode()方法 (ObjectStreamField Class getTypeCode() method)

• getTypeCode() method is available in java.io package.

  getTypeCode()方法在java.io包中可用。

• getTypeCode() method is used to retrieve character code of field type.

  getTypeCode()方法用于检索字段类型的字符代码。

• getTypeCode() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  getTypeCode()方法是一个非静态方法，只能通过类对象进行访问，如果尝试使用类名访问该方法，则会收到错误消息。

• getTypeCode() method does not throw an exception at the time of returning type code of field.

  返回字段的类型代码时， getTypeCode()方法不会引发异常。

Syntax:

句法：

    public char getTypeCode();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of the method is char, it returns the typecode of the serializable field.

该方法的返回类型为char ，它返回可序列化字段的类型代码。

Example:

例：

// Java program to demonstrate the example 
// of char getTypeCode() method 
// of ObjectStreamField

import java.io.*;
import java.util.*;

public class GetTypeCodeOfOSF {
 public static void main(String[] args) {
  // Instantiates ObjectStreamClass for Calendar
  ObjectStreamClass o_sc = ObjectStreamClass.lookup(Calendar.class);

  // By using getField() method is to get the field
  // value from Calendar 
  ObjectStreamField field1 = o_sc.getField("isTimeSet");
  ObjectStreamField field2 = o_sc.getField("fields");

  // By using getTypeCode() method is to return
  // the type code of the field

  char field1_typecode = field1.getTypeCode();
  System.out.println("field1.getTypeCode(): " + field1_typecode);

  char field2_typecode = field2.getTypeCode();
  System.out.println("field2.getTypeCode(): " + field2_typecode);
 }
}

Output

输出量

field1.getTypeCode(): Z
field2.getTypeCode(): [

翻译自: https://www.includehelp.com/java/objectstreamfield-gettypecode-method-with-example.aspx