How can an element of a string array be used as a variable of another string array in java?

Question

for example i have following code

String[]    subject  =  new String[6];
subject[1] = JOptionPane.showInputDialog(null, "Enter subject");
String[] subject[1]=new String[6];

it will not work.There is any other way to do this?

sanbhat · Accepted Answer · 2014-02-28 09:37:33Z

3

You cant do that, unless you declare the first array as 2 dimensional

String[][] subject = new String[6][];

subject[1] = new String[6];

edited Feb 28, 2014 at 9:37

answered Feb 28, 2014 at 9:04

sanbhat

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2 Comments

Yasir pp Over a year ago

it is not the case.actually I want to create a new array, whose variable name is the element of subject array

sanbhat Over a year ago

You cant do that , thats the answer :)

Krishna M · Accepted Answer · 2014-02-28 09:08:20Z

0

String[][] target = new String[VALUE_DESIRED][];
target[i] = new String[VALUE_DESIRED];

VALUE_DESIRED is a integer value which you prefer

i should less than VALUE_DESIRED

answered Feb 28, 2014 at 9:08

Krishna M

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Comments

Balayesu Chilakalapudi · Accepted Answer · 2014-02-28 09:51:53Z

0

This code also works,

    String[][]    subject  =  new String[6][];
subject[1] = JOptionPane.showInputDialog(null, "Enter subject");
subject[1]=new String[6];

altenatively, you can use the concatination operator for adding multiple strings to the value of sub array of type String,

 subject[1]=subject[1]+"first"+"second"+"third";

edited Feb 28, 2014 at 9:51

answered Feb 28, 2014 at 9:13

Balayesu Chilakalapudi

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2 Comments

Yasir pp Over a year ago

String[] subject={"java","php","C#","C++"}; now i want to crate arrays like String[] java; String[] php;.. if these elements (java,php,c++)enterd in run time. how it is used as a variable to create a new array

Balayesu Chilakalapudi Over a year ago

use the concatination operator(+).

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