Random assign methods into inputs

For each of the inputs (name, phoneno), I am using Random Number Generator to assign the inputs to a method. My goal is to get all possible combinations of methods to an input.

Below are my codes. What if I have 1000 of inputs and methods? Is there any efficient way to this this?

public static void main(String[] args) {

  for (int i = 0; i < 9; i++) {

    Random myRand = new Random();
    int randomInteger = myRand.nextInt(10);

    if (randomInteger == 0) {
      name = methodA();
      phoneno = methodA();
    } else if (randomInteger == 1) {
      name = methodA();
      phoneno = methodB();
    } else if (randomInteger == 2) {
      name = methodB();
      phoneno = methodB();
    } else if (randomInteger == 3) {
      name = methodB();
      phoneno = methodA();
    } else if (randomInteger == 4) {
      name = methodC();
      phoneno = methodC();
    } else if (randomInteger == 5) {
      name = methodC();
      phoneno = methodA();
    } else if (randomInteger == 6) {
      name = methodC();
      phoneno = methodB();
    } else if (randomInteger == 7) {
      name = methodA();
      phoneno = methodC();
    } else if (randomInteger == 8) {
      name = methodB();
      phoneno = methodC();
    }
  }
}

public static String methodA() {
  //do something
}

public static String methodB() {
  //do something
}

public static String methodC() {
  //do something
}

Any help will be appreciated. Thank You