Matching decimals in strings using matcher()

Question

I have a question regarding the matcher. Currently I am trying to read a string and store all the digits into an array. My question is, how do you try to match both integers and

Answer 1

This will handle both integer and decimals:-

private Pattern p = Pattern.compile("\\d+(\\.\\d+)?");

@Test
public void testInteger() {
    Matcher m =p.matcher("10");

    assertTrue(m.find());
    assertEquals("10", m.group());
}

@Test
public void testDecimal() {
    Matcher m =p.matcher("10.99");

    assertTrue(m.find());
    assertEquals("10.99", m.group());
}

Answer 2

The phrase \d+ will match a string of numbers. So what about adding a dot between two of them? (\d+)|(\d+|\.\d+)