How can select different drop down value everytime in for loop - selenium

Question

My aim is to add the different drop down value 3 times in the script.
By using for I am able to select and add the same value 3 times but want to select and add the different drop down value every time.
Right now i am able add the same skill three times but i want to add three.
Please suggest how can different value every time the loop executes
here is the code which i am using right now.
for(int i=0; i<=2; i++){
Select skill = new Select(m1.findElement(By.xpath(".//select[#id='skill']")));
skill.selectByValue(skills);
Select proficiency = new Select(m1.findElement(By.xpath(".//select[#name='proficiency']")));
proficiency.selectByValue("3");
m1.findElement(By.xpath(".//button[#id='addskill']")).click();
Thread.sleep(2000);

Answer 1

If you want add diffrent dropdown value 3 times use dropdown.selectByIndex(index).
Select skill = new Select(m1.findElement(By.xpath(".//select[#id='skill']")));
Select proficiency = new Select(m1.findElement(By.xpath(".//select[#name='proficiency']")));
for(int i = 1; i <= 3; i++){
skill.selectByIndex(i);
proficiency.selectByIndex(i);
m1.findElement(By.xpath(".//button[#id='addskill']")).click();
Thread.sleep(2000);
}
OR
For random value selection in the drop down items.You need know how many items are their in the dropdown first.
Select skill = new Select(m1.findElement(By.xpath(".//select[#id='skill']")));
List<WebElement> listOptionDropdown = skill.getOptions();
int dropdownCount = listOptionDropdown.size();
Select proficiency = new Select(m1.findElement(By.xpath(".//select[#name='proficiency']")));
List<WebElement> listOptionDropdown1 = skill.getOptions();
int dropdownCount1 = listOptionDropdown1.size();
for(int i = 1; i <= 3; i++){
int random = (int)(Math.random());
random = random*dropdownCount +1;
skill.selectByIndex(random);
int random1 = (int)(Math.random());
random1 = random1*dropdownCount1 +1;
proficiency.selectByIndex(random1);
m1.findElement(By.xpath(".//button[#id='addskill']")).click();
Thread.sleep(2000);
}