hi I'm beginner and i want to make a quiz math game how can i select a specify index of the random array and use it as case value.
Random random=new Random();
int num1= random.nextInt(30);
int num2= random.nextInt(30);
System.out.println(num1+"+"+num2+"=");
int result=num1+num2;
System.out.println("What is the answer of this operation?");
int sugg1=random.nextInt(100);
int sugg2=random.nextInt(100);
int[] array = {sugg1,sugg2,result};
Random rand = new Random();
for (int i = 0; i < array.length; i++) {
int randomIndexToSwap = rand.nextInt(array.length);
int temp = array[randomIndexToSwap];
array[randomIndexToSwap] = array[i];
array[i] = temp;
}
System.out.println(Arrays.toString(array));
switch (Arrays.toString(array)) {
//I NEED HELP HERE HOW CAN I SELECT A SPECIFY INDEX OF THE RANDOM ARRAY AND USE IT AS CASE VALUE
case array:
}
You can use switch(array[yourIndex]){case element: ...}
I'm not sure to understand what you want to do..
Value version :
// Print for example [14,21,30] if question is 10+11
System.out.println(Arrays.toString(array));
// You want the user to select the answer
System.out.print("Please type the good answer : ");
Scanner scan = new Scanner(System.in);
switch(scan.nextInt()){
case result:
System.out.println("Good answer!");
break;
default:
System.out.printtln("Bad answer!");
}
Index version :
// Print for example [14,21,30] if question is 10+11
System.out.println(Arrays.toString(array));
// You want the user to select the answer index
System.out.print("Please type the good answer : ");
Scanner scan = new Scanner(System.in);
int index = scan.nextInt();
if(index >= 0 && index <= array.length) {
switch(array[index]){
case result:
System.out.println("Good answer!");
break;
default:
System.out.printtln("Bad answer!");
}
} else {
System.out.println("Selected index does not exist in the array");
}
By the way, it could be good if sugg1 != sugg2 != answer, because in the following code it's not impossible that the values are the same :
int sugg1=random.nextInt(100);
int sugg2=random.nextInt(100);
int[] array = {sugg1,sugg2,result};