How to split String and Integer by space between them? in JAVA

Question

0 START
1 LOAD 20
2 STORE 200
3 LOAD 0
4 STORE 201
5 STORE 202
6 CMPM 200
7 CJMP 15
8 LOADM 202
9 ADDM 201
10 STORE 202
11 LOADM 201
12 ADD 1
13 STORE 201
14 JMP 6
15 LOADM 202
16 DISP
17 HALT

I want to split this file by instructions and values like String = "LOAD" int = 20 and remove line numbers.

Is the content in a text file of you have them as `List` ?? – Vishwa Ratna May 06 '20 at 13:33 — Vishwa Ratna, May 06 '20 at 13:33
Are you interested in taking the line number? – Francesco May 06 '20 at 13:33 — Francesco, May 06 '20 at 13:33

score 1 · Accepted Answer · edited May 06 '20 at 14:05

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you need to read this file line by line as described for example here How can I read a large text file line by line using Java?

then for each line you need to do smth. like

String[] split = line.split("\\s+");

in split array you will have your values for example {"2", "STORE", "200"}

just parse or perform Integer.valueOf() for those that are actually numbers.

edited May 06 '20 at 14:05

Vishwa Ratna

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answered May 06 '20 at 13:43

Andry Shutka

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I think this is the right idea, but I'd probably use `"\\s+"` instead of `" "` in case there are multiple spaces or tabs between elements on the line. – Fred Larson May 06 '20 at 13:48
I think because someone is waiting for complete solution:) – Andry Shutka May 06 '20 at 13:52
That's certainly possible. – Fred Larson May 06 '20 at 13:54

How to split String and Integer by space between them? in JAVA

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