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This article mainly introduces what is the difference between the performance of a new object and a clone in java. It has certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let Xiaobian take you to understand it together.

An object created by new is:

1. Create a space in memory;

2. Create objects in the opened memory space;

The constructor of the object is called to initialize the object.

The process of creating an object through clone is:

1, according to the original object memory size to open up a memory space;

2. Copy an existing object and clone all attribute values in the object.

Compared to new, clone calls fewer constructors.

Java objects that require a large amount of contiguous memory space are generally called large objects, such as long strings, arrays, and class objects

If there are a large number of attribute initializations or large objects in the constructor, the way to copy objects using clones performs better.

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