how to make an array for ints and strings in Java?

Question

I am new to Java. I simply want to make an array of ints and an array of Strings.

I tried the following:

int() myArrayOfInts == new int(23);
String() myArrayOfStrings == new String(4);

I am not sure why it won't work.

possible duplicate of [Declare array in Java?](http://stackoverflow.com/questions/1200621/declare-array-in-java) — Sagar Pudi, Dec 03 '14 at 10:30
It wont consume much time to read java tutorials to get understand what you want than posting effortless query! — janasainik, Dec 03 '14 at 10:37

score 1 · Accepted Answer · edited Dec 03 '14 at 13:13

1

Very close. Just wrong brackets. It's simply int[] myArrayOfInts = new int[23]; , for strings it is String[] myArrayOfStrings = new String[4];

edited Dec 03 '14 at 13:13

Sagar Pudi

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answered Dec 03 '14 at 10:27

BlueShark

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score 1 · Answer 2 · answered Dec 03 '14 at 10:28

1

The correct syntax for creating arrays is the following:

int[] arrayOfInts = new int[23];
String[] arrayOfStrings = new String[4];

See this Java tutorials page for using arrays.

answered Dec 03 '14 at 10:28

M A

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score 1 · Answer 3 · answered Dec 03 '14 at 10:32

Use [] instead of (). In java == is used for comparison so use = to assign any value.

Creating int array

  int[] myArrayOfInts = new int[3]; 
  int myArrayOfInts[] = new int[3]; //Legal but don`t use it, less readable
  int[] myArrayOfInts = {1,2,3};

Creating String Array

  String[] myArrayOfStrings = new String[2];
  String myArrayOfStrings[] = new String[2];//Legal but don`t use it, less readable
  String[] myArrayOfStrings = {"Hello","World"}

score 0 · Answer 4 · answered Dec 03 '14 at 10:36

Also you can use ArrayList, and may have not static size of array

ArrayList<Integer> myArrayOfInts = new ArrayList<Integer>(0);
myArrayOfInts.add(5);
myArrayOfInts.add(6);

for (int a : myArrayOfInts) {
    System.out.println(a);
}

And for String:

ArrayList<String> myArrayOfStrings = new ArrayList<String>(0);
myArrayOfStrings.add("Hello");
myArrayOfStrings.add("World!");
 for (String b : myArrayOfStrings) {
    System.out.println(b);
}

Don't forgot to put import java.util.ArrayList; on the upper of file

how to make an array for ints and strings in Java?

4 Answers4