String Split

Code:

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System.out.println("Enter a coordinate pair:");
input = sc.next();
String[] points;
points = input.split("\\s");
System.out.println(points[0]+"\t"+points[1]);

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Hey all,

I am trying to split a string with coordinates in it. Like lets say I input '-10 10' and then split it using a whitespace. This should put two strings in my points string array -> '-10' and '10' but when I print my points array I only get the first input value and thats it. The second value is never written to the points array. Any idea where I am going wrong?

Thanks

I think I got where I am going wrong. When I enter '-10 10' on the console,
input = sc.next(); only reads the first int!!

Read the content as a string and then process as you wish, from the console.

Isn't that what I was trying to do?

Input is defined as a String and scanner sc.next(); returns a string. However in this case if I input '-10 10' it stops reading after '-10'. If someone can tell me where the problem was I'd really appreciate it.

On a side note I was able to fix the problem by not using a scanner, but using a buffered reader and input stream reader instead. Here's how:

<CODE>
BufferedReader bufferedreader = new BufferedReader(newInputStreamReader(System.in));
String number = bufferedreader.readLine();
<CODE>

you can insert a loop for reinput

Code:

---

String[] points;

for(int i=0; i<required_input_times; i++)
{
input = sc.next();
points = input.split("\\s");

for(int j=0; j<points.length; j++)
{
 System.out.print(points[j]+"\t");
}
System.out.println();
}

---

Report if that helps

Quote:

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Originally Posted by sarovarc

Isn't that what I was trying to do?

Input is defined as a String and scanner sc.next(); returns a string. However in this case if I input '-10 10' it stops reading after '-10'. If someone can tell me where the problem was I'd really appreciate it.

On a side note I was able to fix the problem by not using a scanner, but using a buffered reader and input stream reader instead. Here's how:

Code:

---

BufferedReader bufferedreader = new BufferedReader(newInputStreamReader(System.in));
String number = bufferedreader.readLine();

---

---

We can do that in several ways, reading the console. After that handling them is the problematic base on your requirement. As you observed next() reads the next int only, which you don't want to do that, nextLine() will do.

For multiple item handling you've to use arrays like Webuser point to you.

Quote:

---

Originally Posted by sarovarc

Isn't that what I was trying to do?

Input is defined as a String and scanner sc.next(); returns a string. However in this case if I input '-10 10' it stops reading after '-10'. If someone can tell me where the problem was I'd really appreciate it.

On a side note I was able to fix the problem by not using a scanner, but using a buffered reader and input stream reader instead. Here's how:

Code:

---

BufferedReader bufferedreader = new BufferedReader(newInputStreamReader(System.in));
String number = bufferedreader.readLine();

---

---

We can do that in several ways, reading the console. After that handling them is the problematic base on your requirement. As you observed next() reads the next int only, which you don't want to do that, nextLine() will do.

For multiple item handling you've to use arrays like Webuser point to you.