Java Class isPrimitive()方法及示例
java.lang.Class类 的 isPrimitive() 方法用于检查该类是否为原始类。如果这个类是原始类,该方法返回true。否则返回false。
语法:
public boolean isPrimitive()
参数: 该方法不接受任何参数。
返回值: 如果这个类是原始类,该方法返回 true 。否则返回 false 。
下面的程序演示了isPrimitive()方法。
示例1:
// Java 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());
}
}
输出
Class represented by myClass: class Test
Is Test a primitive: false
例2:
// 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
参考资料: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#isPrimitive-