How to fix an occasional wrong answer for finding smallest number out of four randomly generated numbers

I created some basic code for an intro to java class assignment to find the smallest number out of four randomly generated numbers from 0 to 10 inclusive using one (it has to be only one for the assignment) decision control structure, it works and gives correct answers, but occasionally it'll give the wrong answer (screenshots of incorrect answers will be attached since it may take a while to get an incorrect answer from the randomly generated numbers). I'm not sure what is causing the code to give the wrong answer on occasion.

        //variables
        int num1, num2, num3, num4;

        //random
        num1 = (int) (Math.random() * 10) + 0;
        num2 = (int) (Math.random() * 10) + 0;
        num3 = (int) (Math.random() * 10) + 0;
        num4 = (int) (Math.random() * 10) + 0;

        //output
        System.out.println("The four random numbers are " +
                num1 + ", " + num2 + ", " + num3 + ", and " + num4);

        //smallest number decision
        if (num1 <= num2 && num1 <= num3 && num1 <= num4) {
            System.out.println("The smallest number is " + num1);

        } //if end

        else if (num2 <= num1 && num2 <= num3 && num1 <= num4) {
            System.out.println("The smallest number is " + num2);

        } //else if end

        else if (num3 <= num1 && num3 <= num2 && num3 <= num4) {
            System.out.println("The smallest number is " + num3);
        } //else if end

        else {
            System.out.println("The smallest number is " + num4);
        } //else end

Incorrect Outputs