How to create ThreadGroup in java

Explanation

1. Creating a ThreadGroup can be created directly through the constructor method.

2. There are two construction methods, one is to directly specify the name (ThreadGroup is the ThreadGroup of the main thread), and the other is the construction method with the parent ThreadGroup and name.

Example

public static void main(String[] args) throws InterruptedException {
    ThreadGroup group1 = new ThreadGroup("name");
    ThreadGroup group2 = new ThreadGroup(group1,"name2");
    System.out.println(group2.getParent() == group1);
    System.out.println(group1.getParent().getName());
}

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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