Java中的Writer类的getClass()方法用于获取此Writer实例的父类。此方法不接受任何参数,并返回所需的Class详细信息。
用法:
public final Class String getClass()
参数:此方法接受不接受任何参数。
返回值:此方法返回Class详细信息,它是Writer实例的父Class。
下面的方法说明了getClass()方法的用法方式:
示例1:
// Java program to demonstrate
// Writer getClass() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a Writer instance
Writer writer
= new PrintWriter(System.out);
// Get the String
// to be written in the stream
String string = "GeeksForGeeks";
// Write the the string
// to this writer using write() method
writer.write(string);
// Get Class details using getClass()
System.out.println("Parent Class: "
+ writer.getClass());
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
Parent Class: class java.io.PrintWriter
示例2:
// Java program to demonstrate
// Writer getClass() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a Writer instance
Writer writer
= new OutputStreamWriter(System.out);
// Get the String
// to be written in the stream
String string = "GFG";
// Write the the string
// to this writer using write() method
writer.write(string);
// Get Class details using getClass()
System.out.println("Parent Class: "
+ writer.getClass());
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
Parent Class: class java.io.OutputStreamWriter
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注:本文由纯净天空筛选整理自Code_r大神的英文原创作品 Writer getClass() method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。