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Why is it bad practice to declare variables on one line?
e.g.
private String var1, var2, var3
instead of:
private String var1;
private String var2;
private String var3;
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int i = 1, j = 1; Declaring each variable on a separate line is the preferred method. However, multiple variables on one line are acceptable when they are trivial temporary variables such as array indices.
6.1 Number Per LineDo not put different types on the same line.
It is okay to declare variables with same name in different functions. Show activity on this post. Variables declared inside a function only exist in the scope of that function, so having the same variable name across different functions will not break anything.
Yes, variables belonging to different function can have same name because their scope is limited to the block in which they are defined. Variables belonging to different functions in a single code can have same name if we declare that variable globally as shown in the following code snippet below .
In my opinion, the main goal of having each variable on a separate line would be to facilitate the job of Version Control tools.
If several variables are on the same line you risk having conflicts for unrelated modifications by different developers.
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