How to replace all numbers in java string

Question

I have string like this String s="ram123",d="ram varma656887" I want string like ram and ram varma so how to seperate string from combined string I am trying using regex but it is not working

PersonName.setText(cursor.getString(cursor.getColumnIndex(cursor
                .getColumnName(1))).replaceAll("[^0-9]+"));

Solution 1

The correct RegEx for selecting all numbers would be just [0-9], you can skip the +, since you use replaceAll.

However, your usage of replaceAll is wrong, it's defined as follows: replaceAll(String regex, String replacement). The correct code in your example would be: replaceAll("[0-9]", "").

Solution 2

You can use the following regex: \d for representing numbers. In the regex that you use, you have a ^ which will check for any characters other than the charset 0-9

    String s="ram123";
    System.out.println(s);
    /* You don't need the + because you are using the replaceAll method */
    s = s.replaceAll("\\d", "");  // or you can also use [0-9]
    System.out.println(s);

Solution 3

To remove the numbers, following code will do the trick.

 stringname.replaceAll("[0-9]","");

Comments

[Arun Avanathan]

What about consecutive occurrences of numbers? If the example is string1234value5678. Wouldn't \\d+ replace it to stringvalue in two iterations, instead of replacing it 8 times with \\d?