示例中的类 isPrimitive() 方法
Java.lang.Class 类的isPrimitive()方法用于检查这个Class 是否是Primitive 类。如果这个 Class 是 Primitive 类,则该方法返回 true。否则返回 false。
句法:
public boolean isPrimitive()
参数:此方法不接受任何参数。
返回值:如果这个 Class 是 Primitive 类,则此方法返回true 。否则返回false 。
下面的程序演示了 isPrimitive() 方法。
示例 1:
Java
// Java program to demonstrate isPrimitive() 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());
// Check if this class is an primitive
// using isPrimitive() method
System.out.println("Is Test a primitive: "
+ myClass.isPrimitive());
}
}
Java
// Java program to demonstrate isPrimitive() method
public class Test {
public static void main(String[] args)
throws ClassNotFoundException
{
// returns the Class object for this class
Class myClass = int.class;
// Check if myClass is an primitive
// using isPrimitive() method
System.out.println("Is myClass a primitive: "
+ myClass.isPrimitive());
}
}
输出:
Class represented by myClass: class Test
Is Test a primitive: false
示例 2:
Java
// Java program to demonstrate isPrimitive() method
public class Test {
public static void main(String[] args)
throws ClassNotFoundException
{
// returns the Class object for this class
Class myClass = int.class;
// Check if myClass is an primitive
// using isPrimitive() method
System.out.println("Is myClass a primitive: "
+ myClass.isPrimitive());
}
}
输出:
Is myClass a primitive: true
参考: https://docs.oracle.com/javase/9/docs/api/ Java/lang/Class.html#isPrimitive–