[Ερώτηση JAVA]Eπιλογη συγκεκριμενου αριθμου και γραμματος.

[sτrίkε-]

Καλησπερα, θα ηθελα αν καποιος ξερει να μου πει πως μπορω ας πουμε στο 15532 να επιλεξω σαν αποτελεσμα μονο το 2 και αντιστοιχα στην συμβολοσειρα "ΚΩΣΤΑΣ" (π.χ.) πως μπορω να διαλεξω μονο το Α ή μονο το Ω.

[xdem]

for example this is how substring(int) works:

 

substring(4) will makes ΚΩΣΤΑΣ to ΑΣ, then use startsWith and u get Ω

substring(2) will makes ΚΩΣΤΑΣ to ΩΣΤΑΣ use startWith and u get A

 

thats it, but to be more specific you need substring(int, int)

 

so u have to use use substring(4,6) and u get A more easily

[sτrίkε-]

for example this is how substring(int) works:

 

substring(4) will makes ΚΩΣΤΑΣ to ΑΣ, then use startsWith and u get Ω

substring(2) will makes ΚΩΣΤΑΣ to ΩΣΤΑΣ use startWith and u get A

 

thats it, but to be more specific you need substring(int, int)

 

so u have to use use substring(4,6) and u get A more easily

that's true.

Although i have find the answer.

substring it's a bit more difficult to do the thing that i requested.

charAt() method is better.

e.g.

String name = strike;
int n = 2;
System.out.println(charAt(n));

 

This will make an output "t".

[ExTrEmEDwarf]

String name = κωστας;

int n = 1;

System.out.println(charAt(n));

 

 

όπου n = και νούμερο γράμματος