java - Modular calculator getting data inside a String array -

i'm stuck on problem codeabbey. don't want answer entire thing.

this meat of question:

input data have:

• initial integer number in first line;
• one or more lines describing operations, in form sign value sign either + or * , value integer;
• last line in same form, sign % instead , number result should divided remainder.

answer should give remainder of result of operations applied sequentially (starting initial number) divided last number.

my problem logic. far realize there operator, space , number. number thought of using

char c = src.charat(2); 

and operator i'd use same thing. i'd use bunch of if-else statements figure out rest. how do in large scale? how read of numbers in , every 1 of them? nudge on right direction help.

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import java.util.scanner;  public class challenge14 {      static scanner in = new scanner(system.in);      public static void main(string[] args) {          system.out.println("enter first number: ");         int x = in.nextint();          (int = 0; < 7; i++) {             string[] s = new string[i];              s = in.nextline();         }     } } 

one of more helpful classes problem scanner.

the scanner documentation located at: https://docs.oracle.com/javase/7/docs/api/java/util/scanner.html

the scanner can set read string, file, or input stream.

the scanner has several useful methods, including:

• hasnext(), lets know if there other operators or numbers pick up
• next(), read next token string
• nextint(), read next token int

you can use scanner pick first number, use sort of loop perform operations on number until there no more operations perform.