Initialization is to give a variable an initial value.
For example:
Declare a variable: String aa = "abc"; int cc =0; where abc and 0 are the initialized values, and the final value is not necessarily abc or 0. Add your override The value of aa is as follows:
aa = "def" ; cc=1; Then the final value of the aa variable is def, and the cc variable is 1. The purpose of initialization is to make the variable have a value and prevent it from being used. Abnormal.
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