Where is it “kosher” to declare variables?

Question

Java

Where is the best place in the code to declare variables? I understand that this won't move the stars in the sky, but many tutorials I've seen advise declaring variables as close to where they're used as possible, while conventions say:

Put declarations only at the beginning of blocks. (A block is any code surrounded by curly
braces “{” and “}”.)

Z.Y. At the same time, Google Java Style, which is also sometimes referred to, says the opposite:

4.8.2.2 Declared when needed, initialized as soon as possible
Local variables are not habitually declared at the start of their containing block or block-like construct. Instead, local variables are declared close to the point they are first used (within reason), to minimize their scope. Local variable declarations typically have initializers, or are initialized immediately after declaration.

Answer 1

If we are talking about Java, then I personally declare at the top always. So all variables are always in sight and it is easy to edit / delete unnecessary ones, instead of searching through the entire code.
Yes, this code is much easier to read.

Answer 2

The main thing is to stick to a single style throughout the project. I'm more used to declaring closer to use.

Answer 3

I think the same is written

Answer 4

For example, you can't write like this:

int i;
for(i = 0; i < 10; i++)
....

Do :
Or like this:

int i;
public void setDescr(){
i = 23;
System.out.println(i);
}

Necessary:

public void setDescr(){
int i = 23;
System.out.println(i);
}