Java 八种包装数据类型 装箱 拆箱

public class Test {
    
    
    public static void main(String[] args) {
    
    
        Integer i = new Integer(123);//装箱
        int f =i.intValue();//拆箱
        System.out.println(f);
        System.out.println(i);
        float v = i.floatValue();
        System.out.println(v);
/*      byte  Byte;
        short Short;
        int Integer;
        long Long;
        float Float;
        double Double;
        boolean Boolean;
        char Character;
        八种基本数据类型 八种包装数据类型*/

    }
}