Java Handy Sticker 10

Copying an array to another array without traversing each element, since the array is generally stored in a contiguous space, Java provides a arraycopy way to copy the entire array past.

The example code is as follows:

 public  class   arraycopytest{ public  static  void   main (string[] args) {
    int  [] a = {1,2,3,4 int  [] b = new  int  [7 0,b,0,a.length);  for  (int  i=0; i<b.length; i++< Span style= "color: #000000;"        ) {System.out.print (B[i]  + "" );    } System.out.println (); }}

The parameters in the Arraycopy method have the following meanings:

A: Source array

0: Where to start copying from source array

B: Target array

0: Copy to destination array which location

4: How many elements are copied

See the Java DOC documentation for specific syntax.

Java Handy Sticker 10