一、概述：
此方法主要用来判断Class是否为原始类型（boolean、char、byte、short、int、long、float、double）。
二、格式:
Class.isPrimitive()，原始类型下返回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());}
结果输出：
String is primitive type：falseBoolean is primitive type：falseboolean is primitive type：truebyte is primitive type：truechar is primitive type：trueshort is primitive type：trueint is primitive type：truelong is primitive type：truefloat is primitive type：truedouble is primitive type：true
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