How can I add new item to the String array

Question

Possible Duplicate    how to add new elements to a String   array        How can I add new item to the String array   I am trying to add item to the initially empty String  Example      String a        a add  kk       a add  pp

User · Answer

You can t  A Java array has a fixed length  If you need a resizable array  use a java util ArrayList lt String gt    BTW  your code is invalid  you don t initialize the array before using it

User · Answer

You can t do it the way you wanted    Use ArrayList instead   List lt String gt  a   new ArrayList lt String gt     a add  kk    a add  pp      And then you can have an array again by using toArray   String   myArray   new String a size     a toArray myArray

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Simple answer  You can t  An array is fixed size in Java  You ll want to use a List lt String gt    Alternatively  you could create an array of fixed size and put things in it   String   array   new String 2   array 0     Hello   array 1     World

User · Answer

String a    new String 1      a 0  add  kk       a 1  add  pp      Try this one

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From arrays       An array is a container object that holds a fixed number of values of a single type  The length of an array is established when the array is created  After creation  its length is fixed  You ve seen an example of arrays already  in the main method of the  Hello World   application  This section discusses arrays in greater detail      So in the case of a String array  once you create it with some length  you can t modify it  but you can add elements until you fill it   String   arr   new String 10      10 is the length of the array  arr 0     kk   arr 1     pp         So if your requirement is to add many objects  it s recommended that you use Lists like   List lt String gt  a   new ArrayList lt String gt     a add  kk    a add  pp

[java] How can I add new item to the String array?

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