Get 2 integers separated by space from string
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Let's say I have an input formatted as "a b" and I want to extract a and b. For example, if my input is 10 15 I want to set a as 10 and b as 15. I usually do this by using StringTokenizer like so:
StringTokenizer st = new StringTokenizer(str, " ");
int a = Integer.parseInt(st.nextToken());
int b = Integer.parseInt(st.nextToken());
Is there any way where I can do this in a much shorter piece of code?
java
asked Nov 12 at 3:09
candymint
33910
add a comment |
up vote
-2
down vote
favorite
Let's say I have an input formatted as "a b" and I want to extract a and b. For example, if my input is 10 15 I want to set a as 10 and b as 15. I usually do this by using StringTokenizer like so:
StringTokenizer st = new StringTokenizer(str, " ");
int a = Integer.parseInt(st.nextToken());
int b = Integer.parseInt(st.nextToken());
Is there any way where I can do this in a much shorter piece of code?
java
asked Nov 12 at 3:09
candymint
33910
That is short and simple and easy to read. How would you expect to 1) parse a string 2) assign values to 2 variable in less that 3 statements? Even if you could do it in less statements it doesn't mean you should since the code will become unreadable and much harder to debug.
– camickr
Nov 12 at 3:11
2
If you're looking for short, unreadable code, choose something other than Java
– Jacob G.
Nov 12 at 3:12
add a comment |
up vote
-2
down vote
favorite
up vote
-2
down vote
favorite
Let's say I have an input formatted as "a b" and I want to extract a and b. For example, if my input is 10 15 I want to set a as 10 and b as 15. I usually do this by using StringTokenizer like so:
StringTokenizer st = new StringTokenizer(str, " ");
int a = Integer.parseInt(st.nextToken());
int b = Integer.parseInt(st.nextToken());
Is there any way where I can do this in a much shorter piece of code?
java
asked Nov 12 at 3:09
candymint
33910
Let's say I have an input formatted as "a b" and I want to extract a and b. For example, if my input is 10 15 I want to set a as 10 and b as 15. I usually do this by using StringTokenizer like so:
StringTokenizer st = new StringTokenizer(str, " ");
int a = Integer.parseInt(st.nextToken());
int b = Integer.parseInt(st.nextToken());
Is there any way where I can do this in a much shorter piece of code?
java
java
asked Nov 12 at 3:09
candymint
33910
asked Nov 12 at 3:09
candymint
33910
asked Nov 12 at 3:09
candymint
33910
asked Nov 12 at 3:09
candymint
33910
asked Nov 12 at 3:09
candymint
33910
33910
That is short and simple and easy to read. How would you expect to 1) parse a string 2) assign values to 2 variable in less that 3 statements? Even if you could do it in less statements it doesn't mean you should since the code will become unreadable and much harder to debug.
– camickr
Nov 12 at 3:11
2
If you're looking for short, unreadable code, choose something other than Java
– Jacob G.
Nov 12 at 3:12
add a comment |
That is short and simple and easy to read. How would you expect to 1) parse a string 2) assign values to 2 variable in less that 3 statements? Even if you could do it in less statements it doesn't mean you should since the code will become unreadable and much harder to debug.
– camickr
Nov 12 at 3:11
2
If you're looking for short, unreadable code, choose something other than Java
– Jacob G.
Nov 12 at 3:12
That is short and simple and easy to read. How would you expect to 1) parse a string 2) assign values to 2 variable in less that 3 statements? Even if you could do it in less statements it doesn't mean you should since the code will become unreadable and much harder to debug.
– camickr
Nov 12 at 3:11
That is short and simple and easy to read. How would you expect to 1) parse a string 2) assign values to 2 variable in less that 3 statements? Even if you could do it in less statements it doesn't mean you should since the code will become unreadable and much harder to debug.
– camickr
Nov 12 at 3:11
2
2
If you're looking for short, unreadable code, choose something other than Java
– Jacob G.
Nov 12 at 3:12
If you're looking for short, unreadable code, choose something other than Java
– Jacob G.
Nov 12 at 3:12
add a comment |
1 Answer
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You could convert it to an int by using String.split(String) and then streaming that to an IntStream by mapping. Like,
int vals = Stream.of(str.split("\s+")).mapToInt(Integer::parseInt).toArray();
int a = vals[0], b = vals[1];
And you can use a comma to separate assignments. Of course, your original version code use that trick to eliminate a line. However, now we can eliminate a and b by using vals[0] and vals[1]. Without further context I wouldn't necessarily recommend that.
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
up vote
1
down vote
You could convert it to an int by using String.split(String) and then streaming that to an IntStream by mapping. Like,
int vals = Stream.of(str.split("\s+")).mapToInt(Integer::parseInt).toArray();
int a = vals[0], b = vals[1];
And you can use a comma to separate assignments. Of course, your original version code use that trick to eliminate a line. However, now we can eliminate a and b by using vals[0] and vals[1]. Without further context I wouldn't necessarily recommend that.
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
add a comment |
up vote
1
down vote
You could convert it to an int by using String.split(String) and then streaming that to an IntStream by mapping. Like,
int vals = Stream.of(str.split("\s+")).mapToInt(Integer::parseInt).toArray();
int a = vals[0], b = vals[1];
And you can use a comma to separate assignments. Of course, your original version code use that trick to eliminate a line. However, now we can eliminate a and b by using vals[0] and vals[1]. Without further context I wouldn't necessarily recommend that.
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
add a comment |
up vote
1
down vote
up vote
1
down vote
You could convert it to an int by using String.split(String) and then streaming that to an IntStream by mapping. Like,
int vals = Stream.of(str.split("\s+")).mapToInt(Integer::parseInt).toArray();
int a = vals[0], b = vals[1];
And you can use a comma to separate assignments. Of course, your original version code use that trick to eliminate a line. However, now we can eliminate a and b by using vals[0] and vals[1]. Without further context I wouldn't necessarily recommend that.
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
You could convert it to an int by using String.split(String) and then streaming that to an IntStream by mapping. Like,
int vals = Stream.of(str.split("\s+")).mapToInt(Integer::parseInt).toArray();
int a = vals[0], b = vals[1];
And you can use a comma to separate assignments. Of course, your original version code use that trick to eliminate a line. However, now we can eliminate a and b by using vals[0] and vals[1]. Without further context I wouldn't necessarily recommend that.
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
answered Nov 12 at 3:12
Elliott Frisch
151k1389178
151k1389178
add a comment |
add a comment |
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That is short and simple and easy to read. How would you expect to 1) parse a string 2) assign values to 2 variable in less that 3 statements? Even if you could do it in less statements it doesn't mean you should since the code will become unreadable and much harder to debug.
– camickr
Nov 12 at 3:11
2
If you're looking for short, unreadable code, choose something other than Java
– Jacob G.
Nov 12 at 3:12