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Java Java Data Structures - Retired Organizing Data Arrays

Posted by jay ang
jay ang
Courses Plus Student 679 Points

System.arraycopy(); the last '2'?

in the System.arraycopy(fruit, 0, biggerfruit, 0 , 2); what does the '2' means? (the last one)

2 Answers

andren
andren
28,558 Points
andren
andren
28,558 Points

The last argument is the length. More simply put it is the number of items you want to copy from one array to the other.

Robert Stamate
Robert Stamate
13,227 Points
Robert Stamate
Robert Stamate
13,227 Points

As andren said the last argument is length. In order to make it more understandable I got by this: System.arraycopy(fruit, 0, biggerfruit, 0 , fruit.lenth); // Instead of two (2) I use the current array length;

And if I use the java.util.Arrays I got like this: fruit = Arrays.copyOf(fruit, fruit.length + 1); // and it will always add me one more spot in my Array at the end;