Returning string array to the method and print returned array

Question

How can I return a string[] from a method:

public String[] demo
{
  String[] xs = new String {"a","b","c","d"};
  String[] ret = new String[4];
  ret[0]=xs[0];
  ret[1]=xs[1];
  ret[2]=xs[2];
  ret[3]=xs[3];

  retrun ret;
}

Is this right, because I tried it and it didn't work. How can I print this returned string array in main method.

"*because i tried it n it dint work*" => What did not work? You *are* returning an array from that method. — assylias, Mar 12 '13 at 11:41
I've downvoted you because there is no evidence of prior research on your part. What have *you* tried? — Duncan Jones, Mar 12 '13 at 11:41
hey listen i did mistake by writing retrun instead of return.. — Hitman, Mar 12 '13 at 11:50
I have found an article on web [Return Array in Java](https://www.tutorialcup.com/java/how-to-return-an-array-in-java.htm) — Rahul Gupta, May 14 '21 at 13:53

Maroun · Answer 1 · 2013-03-12T11:57:30.527

9

Your code won't compile. It suffers from many problems (including syntax problems).

You have syntax errors - retrun should be return.

After demo you should have parenthesis (empty if you don't need parameters)

Plus, String[] xs = new String {"a","b","c","d"};

should be:

String[] xs = new String[] {"a","b","c","d"};

Your code should look something like this:

public String[] demo()  //Added ()
{
     String[] xs = new String[] {"a","b","c","d"}; //added []
     String[] ret = new String[4];
     ret[0]=xs[0];
     ret[1]=xs[1];
     ret[2]=xs[2];
     ret[3]=xs[3];
     return ret;
}

Put it together:

public static void main(String args[]) 
{
    String[] res = demo();
    for(String str : res)
        System.out.println(str);  //Will print the strings in the array that
}                                 //was returned from the method demo()


public static String[] demo() //for the sake of example, I made it static.
{
     String[] xs = new String[] {"a","b","c","d"};
     String[] ret = new String[4];
     ret[0]=xs[0];
     ret[1]=xs[1];
     ret[2]=xs[2];
     ret[3]=xs[3];
     return ret;
 }

edited Mar 12 '13 at 11:57

answered Mar 12 '13 at 11:42

Maroun

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hey i did write "return"..cant u see?? – Hitman Mar 12 '13 at 11:44
2

Or `String[] xs = {"a","b","c","d"};` – assylias Mar 12 '13 at 11:45
2

@Hitman You didn't. For a brief period I had edited your question to spell `return` correctly, then I thought better of it. – Duncan Jones Mar 12 '13 at 11:46
sorry sorry..ok but it doesnt work if i write "return" also – Hitman Mar 12 '13 at 11:46
@Hitman you wrote `retrun`, someone edited it to be `return` – Maroun Mar 12 '13 at 11:46
but i did write return and then main method..and then compiled it..but its showing error like "can not find symbol" pointing "return ret". – Hitman Mar 12 '13 at 11:52
@Hitman See: http://ideone.com/lnqTba – Maroun Mar 12 '13 at 11:54

duffy356 · Answer 2 · 2013-03-12T11:50:03.257

0

try this:

//... in main
String [] strArr = demo();
for ( int i = 0; i < strArr.length; i++) {
    System.out.println(strArr[i]);
}

//... demo method
public static String[] demo()
{
    String[] xs = new String [] {"a","b","c","d"};
    return xs;
}

edited Mar 12 '13 at 11:50

answered Mar 12 '13 at 11:44

duffy356

3,678
3
32
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2

`demo` isn't static, so this is not going to work – default locale Mar 12 '13 at 11:46

Returning string array to the method and print returned array

2 Answers2