String substring function

[ravian]

Hi,

I am using the substring methodto get part of a string.

Code:

String string = "WelcomeToJava";
System.out.println(string.substring(9,12));

Output:

Code:

Jav

I want to get output "Java". The index of "J" is 9 and index of a is 12. It appears that the first argument to the method is inclusive and the second one is exclusive. Please correct me.

[simi]

String string = "WelcomeToJava";
System.out.println(string.substring(9,13));

[roots]

I hope java docs on substring method of String class should make you more clear on this.

[tim]

Hello, ravian.

The substring method is a funny one. The way that I understand is that the first parameter has zero-based indexing and the second has one-based indexing. For example:

first parameter:____00 01 02 03 04 05 06 07 08 09 10 11 12
second parameter:___01 02 03 04 05 06 07 08 09 10 11 12 13
string:_____________W__e__l__c__o__m__e__T__o__J__a__v__a

[ravian]

This explains. As tim said: the first parameter is zero based and the second one is one based.

Strange but its like this.

Thanks everyone.

[CaptainMorgan]

Quote:

Originally Posted by tim

Hello, ravian.

The substring method is a funny one. The way that I understand is that the first parameter has zero-based indexing and the second has one-based indexing. For example:

first parameter:____00 01 02 03 04 05 06 07 08 09 10 11 12
second parameter:___01 02 03 04 05 06 07 08 09 10 11 12 13
string:_____________W__e__l__c__o__m__e__T__o__J__a__v__a

Very interesting Tim... I learned something new today, seriously.

[tim]

Thank you CaptainMorgan.