String manipulation in java to get another string

Question

I have the String content://com.android.contact/data/5032 in a variable Str1. I want to manipulate Str1 so that I will get 5032 in another string variable.

Can anyone suggest the answer?

Answer 1

String str1 = "content://com.android.contact/data/5032"
String val = str1.substring(str1.lastIndexOf("//")+1);

Answer 2

If you want go get digits from the given string try this:

String str = "content://com.android.contact/data/5032";
String str2 = str.replaceAll("\\D+","");
System.out.println(str2);

Output:

5032

If you want to split try this:

String[] string = str.split("//|/");
System.out.println(string[string.length -1 ]);

Output:

5032

Answer 3

String str1 = "content://com.android.contact/data/5032";
String str2 = str1.substring(str1.lastIndexOf("/")+1, str1.length());

Answer 4

if you only want the last 4 chars, you can do something like this

String s = "this is a string";
String ss = s.substring(s.length()-4, s.length());

but if you need to extract the number from random positions, you will have to use regular expressions.

Answer 5

Please write names of variables starting with a small letter. You can use the split method to do this. You might find this related question interesting: How to split a string in Java.