java.lang.Class.isPrimitive()用法解析

一、概述：

此方法主要用來判斷Class是否為原始類型（boolean、char、byte、short、int、long、float、double）。

二、格式:

Class.isPrimitive()，原始類型下返回true

三、示例：

public static void main(String[] args){

    Class stringClass=String.class;
    System.out.println("String is primitive type："+stringClass.isPrimitive());

    Class booleanClass=Boolean.class;
    System.out.println("Boolean is primitive type："+booleanClass.isPrimitive());

    Class booleanType=boolean.class;
    System.out.println("boolean is primitive type："+booleanType.isPrimitive());

    Class byteType=byte.class;
    System.out.println("byte is primitive type："+byteType.isPrimitive());

    Class charType=char.class;
    System.out.println("char is primitive type："+charType.isPrimitive());

    Class shortType=short.class;
    System.out.println("short is primitive type："+shortType.isPrimitive());

    Class intType=int.class;
    System.out.println("int is primitive type："+intType.isPrimitive());

    Class longType=long.class;
    System.out.println("long is primitive type："+longType.isPrimitive());

    Class floatType=float.class;
    System.out.println("float is primitive type："+floatType.isPrimitive());

    Class doubleType=double.class;
    System.out.println("double is primitive type："+doubleType.isPrimitive());
}

結果輸出：

String is primitive type：false
Boolean is primitive type：false
boolean is primitive type：true
byte is primitive type：true
char is primitive type：true
short is primitive type：true
int is primitive type：true
long is primitive type：true
float is primitive type：true
double is primitive type：true