Java equivalent of python nested for loop

Question

Say we had the following python nested loop:

for i in range(0, len(A)):
  for k in range(i, len(A)):
     # Do something

What would be the java equivalent? This is what I got:

for (int i = 0; i < A.length ; i ++) {
  int j = i;
  for (j ; j < A.length ; j++) {
     // Do something
  }
}

Reblochon Masque · Accepted Answer · 2015-09-28 04:29:41Z

3

Looks right to me, although you can declare j in the for loop.

for (int i = 0; i < number; i++) {
    for (int j = i; j < number; j++) {
        // Do something
    }
}

For the sake of completeness, python loops of this form:

for item in sequence:
    #do something

can be done in java as follows:

for (type item : sequence) {  //type being the type of the items in the sequence
    //do something
}

Reblochon Masque

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answered Sep 28, 2015 at 3:54

Arthur

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2 Comments

I tried this but I got the following error: Syntax error on token "j", ++ expected after this token

Sorry, I forgot to put 'int' before j.