why do we not have multiple initialization in for loop? we do have multiple increment statements

Question

why do we not have multiple initialization in for loop? we do have multiple increment statements.

code:

for(int i=1,int c=4;i<1;i++)
  System.out.println(c);

This code shows a compile time error.

Yes, you can have multiple increment statements like `i++, c++` but not `i + 1, c + 1` which lies in the nature of transforming a for loop into "normal" code. — Smutje, Aug 14 '14 at 09:48
possible duplicate of [Java: Initialize multiple variables in for loop init?](http://stackoverflow.com/questions/3542871/java-initialize-multiple-variables-in-for-loop-init) — Tom Jonckheere, Aug 14 '14 at 09:49
WHAT error? Your compiler usually gives a detailed error message, it is very helpful for others if you copy and paste these error messages verbatim when asking a question! (And sometimes, you may even answer the question yourself...) — Gyro Gearless, Aug 14 '14 at 09:49
but it's sad that `for (int i, char c; ...` is not working, in such cases I use `while`... — Betlista, Aug 14 '14 at 09:54

score 6 · Answer 1 · answered Aug 14 '14 at 09:47

6

You are using wrong syntax. You can use this way

  for(int i=1, c=4;i<1;i++)

answered Aug 14 '14 at 09:47

Ruchira Gayan Ranaweera

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score 2 · Answer 2 · answered Aug 14 '14 at 10:03

If by "have multiple increment statements" you mean e.g.

for(int i=1, c=4;i<1;i++,c++)
//                   ^   ^
//                   |   |
// Multiple increment expressions

First of all, they are expressions and not statements. Secondly, i++,c++ is one expression, using the comma operator to separate two sub-expressions.

why do we not have multiple initialization in for loop? we do have multiple increment statements

2 Answers2