cannot convert int to string array

Question

Hi the problem in the code is at the end finalResult[index]= mark; code, mark gives error. It says cannot convert int to string. How can i fix it ?

    System.out.println("Please choose a criteria (2-7) ?");
    topic = in.nextInt();
    System.out.println("Please enter a mark :");
    int mark = in.nextInt();
    final int size = cols.length;
    String[] finalResult = new String[size];
    int index = 0;

    while(index<finalResult.length ) {
        if (index==topic) {
          finalResult[index]= mark;
        } else {
        finalResult[index]=cols[index];
        }
        index++; 

    }
    }

try something like finalResult[index]= mark + "";

Muhammad Usama Ashraf
– Muhammad Usama Ashraf

2020-04-26 14:44:35 +00:00
Commented Apr 26, 2020 at 14:44 — Muhammad Usama Ashraf
– Muhammad Usama Ashraf, Commented Apr 26, 2020 at 14:44

catch32 · Accepted Answer · 2020-04-26 14:52:20Z

2

The problem is here:

finalResult[index] = mark;

You can't put int number to String array:

Error:
incompatible types: int cannot be converted to java.lang.String

You need to convert number to String before adding to the array.

You have to change as follows:

finalResult[index] = String.valueOf(mark);

or

finalResult[index] = mark + "";

edited Apr 26, 2020 at 14:52

answered Apr 26, 2020 at 14:45

catch32

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Comments

bakero98 · Accepted Answer · 2020-04-26 15:12:00Z

1

Casting integer to string is done with method String.valueOf so in your case it would be

String.valueOf(mark)

edited Apr 26, 2020 at 15:12

answered Apr 26, 2020 at 14:45

bakero98

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1 Comment

DodgyCodeException Over a year ago

Index is an int.

David Buck · Accepted Answer · 2020-04-26 19:55:56Z

0

Change the mark declaration in the code as below,

String mark = in.nextLine();

edited Apr 26, 2020 at 19:55

David Buck

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answered Apr 26, 2020 at 15:50

Sivasuriyan

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