How do I fill arrays in Java

Question

I know how to do it normally  but I could swear that you could fill out out like a 0     0 0 0 0   How do you do it that way  I did try Google  but I didn t get anything helpful

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int   a    1  2  3  4  5  6  7  8  9  10

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Check out the Arrays fill methods   int   array   new int 4   Arrays fill array  0

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You can also do it as part of the declaration   int   a   new int    0  0  0  0

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Arrays fill arrayName value     in java  int arrnum     5 6 9 2 10   for int i 0 i lt arrnum length i       System out println arrnum i          Arrays fill arrnum 0   for int i 0 i lt arrnum length i       System out println arrnum i            Output  5 6 9 2 10 0 0 0 0 0

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In Java-8 you can use IntStream to produce a stream of numbers that you want to repeat  and then convert it to array  This approach produces an expression suitable for use in an initializer   int   data   IntStream generate    - gt  value  limit size  toArray      Above  size and value are expressions that produce the number of items that you want tot repeat and the value being repeated   Demo

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Arrays fill    The method is overloaded for different data types  and there is even a variation that fills only a specified range of indices

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An array can be initialized by using the new Object    syntax   For example  an array of String can be declared by either   String   s   new String     One    Two    Three    String   s2     One    Two    Three      Primitives can also be similarly initialized either by   int   i   new int    1  2  3   int   i2    1  2  3     Or an array of some Object   Point   p   new Point    new Point 1  1   new Point 2  2      All the details about arrays in Java is written out in Chapter 10  Arrays in The Java Language Specifications  Third Edition

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Array elements in Java are initialized to default values when created  For numbers this means they are initialized to 0  for references they are null and for booleans they are false   To fill the array with something else you can use  Arrays fill   or as part of the declaration  int   a   new int    0  0  0  0     There are no shortcuts in Java to fill arrays with arithmetic series as in some scripting languages

[java] How do I fill arrays in Java?

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