"Go" Java class member variable default initialization rule

When a variable is used as a member of a class, Java assigns it a default value if it is not initialized:

-----------------------------------------------------------------------------------------Boolean             Falsechar                  ' \u0000 ' (null) byte                   (byte) 0short                  (short) 0int                      0long                   0Lfloat                   0.0fdouble               0.0d

-----------------------------------------------------------------------------------------If you define a variable in a method, Java does not assign a default value to it, it must be initialized to him, or we will get a compile error hint;

In Java, it is expressly stated that:

1, if it is a reference type, such as: String, there are class objects, their default values are: null;

2, and if the value type: Double,int,long,float,char and so on, they are: 0;

There is also a Boolean, the default value is: false.

"Go" Java class member variable default initialization rule