Java Class isPrimitive()方法及示例

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Java Class isPrimitive()方法及示例

java.lang.Class类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-

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