Generates random maths questions

[cachi]

Hi, I am writing a program that generates random maths questions for primary schools, but I'm having a problem finding out how to select one of the following characters at random (+ - * /).
Please can you help?

Thanks.

[nitinborge5]

hi cachi
do one thing convert characters in string[]

and from that u can get your charactor randomly

with help of equals method u can get apropriate operator

ok

[brianhks]

Do what was previously stated and use Random.nextInt(4). It will return you either 0,1,2 or 3. You can use that to get one of the symbols from the array.

[yiweiang]

yes, so to further explain that, it means that
if (x=0)
{
selectedSymbol=plus;
}

...etc

[brianhks]

Don't use an if statement at all.

Code:

String[] operators = {"+", "-", "*", "/"};

Random rand = new Random();

String op = operators[rand.nextInt(4)];

Just loop that last line as you create your math problems.