基本数据类型运算以及自动装箱与拆箱

package com.myclass.basicDataType;

//基本数据类型
public class BasicDataTypeAndClassPackage {
public static void main(String[] args) {
char a = 'a';   //包装类  Character a
byte b = 12;     //包装类  Byte b
short c = 22;    //包装类  Short c
int d = 34;      //包装类  Integer d
long f = 45L;	  //包装类 Long f
float g = 23.4f;   //包装类 Float g
double h = 34.5;	//包装类 Double h
boolean i = true;	//包装类 Boolean i

//1、各个数据类型之间的运算转换
//一般都是隐式转换，小的与大的一起运算，往大的数据类型转
int aa = a+d;
float dd = f+g;
double ff = h+g;
int bb = a+b;
System.out.println(aa);
System.out.println(dd);
System.out.println(ff);
System.out.println(bb);

//自动装箱与拆箱
Integer v = 12;
short vv = 23;
int vvv = v+vv;
System.out.println(vvv);

}
}