I am trying to split the following strings:
1396*43
23*
56*
122*37*87
All of these are stored in an array. Following is a part of my code:
for(int i=0;i<array.length;i++)
{
String[] tokens = array[i].split("\\*");
System.out.println(tokens[1]);
}
It only prints "43" stored in first index and not "37" stored in last index.
You are getting an IndexOutOfBoundsException cause you are trying to get tokens[1] on the second line (the length of tokens there is 1).
Change your code this way:
for(int i=0;i<array.length;i++) {
String[] tokens = array[i].split("\\*");
if (tokens.length > 1) {
System.out.println(tokens[1]);
}
}
When using spilt, make sure have a token value in the first place. Even not, handle it.
public class TestMain {
public static void main(String[] args) {
String array[]=new String[200];
array[0]="1396*43";
array[1]="23*";
array[2]="56*";
array[3]="122*37*87";
for(int i=0;i<array.length;i++)
{
if(null!=array && null!= array[i] && null!=array[i].split("\\*")){
String[] tokens = array[i].split("\\*");
if (tokens.length > 1) {
System.out.println(tokens[1]);
}
}
}
}
}
Solution with Java8 and streams:
String[] words = {"1396*43",
"23*",
"56*",
"122*37*87"};
List<String> numbers = Arrays.stream(words)
.map(word -> word.split("\\*"))
.flatMap(Arrays::stream)
.collect(Collectors.toList());
numbers.forEach(System.out::println);
