How to get substrings from strings [duplicate]

Question

I have two strings

 1. "151.909 KB"
 2. "151.0"

In both cases I want to cut everything that comes after the period. The expected result is the following:

 1. "151"
 2. "151"

and If I'll upload over 999 kb, I'll have in result 1.1 Mb, so what then? — Vitaliy Mckay
– Vitaliy Mckay, Commented Aug 12, 2015 at 9:12
Please, don't just ask for something. Provide what you've tried so far, and show us you've actually had a go at trying to achieve what you want. — evolutionxbox
– evolutionxbox, Commented Aug 12, 2015 at 9:12

wawek · Accepted Answer · 2015-08-12 09:11:51Z

7

s.substring(0, s.indexOf("."));

answered Aug 12, 2015 at 9:11

wawek

1,5971 gold badge14 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Vitaliy Mckay Over a year ago

Thx, it works :) Will accept in 10 min, can't accept ur answer right now

NaveenBharadwaj · Accepted Answer · 2015-08-12 09:15:15Z

3

String str = "150.23121KB";
String[] requiredString = str.split("\\.");
System.out.println(requiredString[0]);

edited Aug 12, 2015 at 9:15

answered Aug 12, 2015 at 9:13

NaveenBharadwaj

1,3335 gold badges22 silver badges42 bronze badges

2 Comments

Maroun Over a year ago

split takes a regex.... you should quote the dot.. Your current code will split according to everything, resulting with an array of each char.

NaveenBharadwaj Over a year ago

Right..forgot that :)

Community · Accepted Answer · 2020-06-20 09:12:55Z

2

For this use String.indexOf

Returns the index within this string of the first occurrence of the specified character. If a character with value ch occurs in the character sequence represented by this String object, then the index (in Unicode code units) of the first such occurrence is returned. For values of ch in the range from 0 to 0xFFFF (inclusive), this is the smallest value k such that:

Combined with with String.substring

Returns a new string that is a substring of this string. The substring begins at the specified beginIndex and extends to the character at index endIndex - 1. Thus the length of the substring is endIndex-beginIndex.

Result

s.substring(0, s.indexOf("."));

edited Jun 20, 2020 at 9:12

CommunityBot

11 silver badge

answered Aug 12, 2015 at 9:14

Jordi Castilla

27.1k8 gold badges73 silver badges113 bronze badges

Comments

Piyush Mittal · Accepted Answer · 2015-08-12 09:17:14Z

1

result = result.split("\\.")[0];

answered Aug 12, 2015 at 9:17

Piyush Mittal

1,8881 gold badge23 silver badges40 bronze badges

Collectives™ on Stack Overflow

How to get substrings from strings [duplicate]

4 Answers 4

1 Comment

2 Comments

Result

Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

1 Comment

2 Comments

Result

Comments

Comments

Linked

Related