Java中的类 getName() 方法及示例
Java.lang.Class 类的getName()方法用于获取该实体的名称。该实体可以是类、数组、接口等。该方法将实体的名称作为字符串返回。
句法:
public String getName()
参数:此方法不接受任何参数。
返回值:此方法将实体的名称作为字符串返回。
下面的程序演示了 getName() 方法。
示例 1:
Java
// Java program to demonstrate getName() method
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 name of myClass
// using getName() method
System.out.println("Name of myClass: "
+ myClass.getName());
}
}
Java
// Java program to demonstrate getName() method
public class Test {
class Arr {
}
public static void main(String[] args)
throws ClassNotFoundException
{
// returns the Class object for A
Class arrClass = Arr.class;
// Get the name of arrClass
// using getName() method
System.out.println("Name of arrClass: "
+ arrClass.getName());
}
}
输出:
Class represented by myClass: class Test
Name of myClass: Test
示例 2:
Java
// Java program to demonstrate getName() method
public class Test {
class Arr {
}
public static void main(String[] args)
throws ClassNotFoundException
{
// returns the Class object for A
Class arrClass = Arr.class;
// Get the name of arrClass
// using getName() method
System.out.println("Name of arrClass: "
+ arrClass.getName());
}
}
输出:
Name of arrClass: Test$Arr
参考: https://docs.oracle.com/javase/9/docs/api/ Java/lang/Class.html#getName–