Java - make a function to create a variable with the name = String we input?

How can i make a function: When i input a string "abc" this function create a variable with the same name, like this: `int abc = 10`. void func("abc"){ .......... } //I will have: int abc =10; I can't do it, someone help me?
This is impossible in Java, as you can't have variable/dynamic variable names as in PHP. Why not just store the name-value pair in a Map instead?

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