How to use java default access modifier

1. Variables and methods declared using the default access modifier are visible to the class. The variables in the interface are implicitly declared as public static final, and the access rights of the methods in the interface are public by default.

2. The declaration of variables and methods cannot use any modifiers.

Example

    String version = "1.5.1";
    boolean processOrder() {
        return true;
    }

What are the basic data types of java

The basic data types of Java are divided into:

1. Integer type , a data type used to represent integers.

2. Floating point type, a data type used to represent decimals.

3. Character type. The keyword of character type is "char".

4. Boolean type is the basic data type that represents logical values.

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