Java中的类 getSimpleName() 方法和示例
Java.lang.Class 类的 getSimpleName ()方法用于获取该类的简单名称,如源代码中给出的。该方法以String的形式返回这个类的简单名称。如果此类是匿名的,则此方法返回空字符串。
句法:
public String getSimpleName()
参数:此方法不接受任何参数。
返回值:该方法以String的形式返回该类的简单名称。如果此类是匿名的,则此方法返回空字符串。
下面的程序演示了 getSimpleName() 方法。
示例 1:
Java
// Java program to demonstrate getSimpleName() method
import java.util.*;
public class Test {
public static void main(String[] args)
throws ClassNotFoundException
{
// returns the Class object for this class
Class myClass = Class.forName("Test");
System.out.println("Class represented by myClass: "
+ myClass.toString());
// Get the simple name of myClass
// using getSimpleName() method
System.out.println("SimpleName of myClass: "
+ myClass.getSimpleName());
}
}
Java
// Java program to demonstrate getSimpleName() method
import java.util.*;
class Main {
public Object obj;
Main()
{
class Arr {
};
obj = new Arr();
}
public static void main(String[] args)
throws ClassNotFoundException
{
Main t = new Main();
// returns the Class object
Class myClass = t.obj.getClass();
// Get the simple name of myClass
// using getSimpleName() method
System.out.println("SimpleName of myClass: "
+ myClass.getSimpleName());
}
}
输出:
Class represented by myClass: class Test
SimpleName of myClass: Test
示例 2:
Java
// Java program to demonstrate getSimpleName() method
import java.util.*;
class Main {
public Object obj;
Main()
{
class Arr {
};
obj = new Arr();
}
public static void main(String[] args)
throws ClassNotFoundException
{
Main t = new Main();
// returns the Class object
Class myClass = t.obj.getClass();
// Get the simple name of myClass
// using getSimpleName() method
System.out.println("SimpleName of myClass: "
+ myClass.getSimpleName());
}
}
输出:
SimpleName of myClass: Arr
参考: https://docs.oracle.com/javase/9/docs/api/ Java/lang/Class.html#getSimpleName–