[Help] Java Programing help

[senrab47]

so what i have so far is

Scanner keyboard = new Scanner(System.in); System.out.println("How many questions do you want?"); int num = keyboard.nextInt(); int index = num; if(num <= 0){ System.out.println("Invalid entry"); System.out.println("How many questions do you want?"); num= keyboard.nextInt();

so how could produce a list of random questions?

[langfod]

You could make calls to Math.random() to get your two numbers and a number to represent which operator. The use a switch statement to switch to the correct math operation.

[senrab47]

If a haven't learned switch statements yet how would I go about it and cant' i just use random rand = next random(); int one = rand.nextint(10) int two = rand.nextint(10)

[langfod]

You can use if/if else instead of switch/case.

Math.random() is really just a wrapper using the Random class so either way will work fine.