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 TestIs 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-
