How do i parse a substring in java

Question

I had run a class that gives me an output which looks like this:

Process ID...
Thread list...
TID Start address Thread state
-------------
5372 0 Wait
5512 140729994628784 Wait
5624 0 Wait
5511 140729994628784 Wait
5510 140729994628784 Wait
55009 140729994628784 Wait
5624 0 Wait
....the list is long....

i need to parse a substring of above output which is like eg. tid = 5511 (knowing the status is 1) to be used to another class that takes the tid (eg.5511) from the above output

how do i do? tried but didn't work so far

Answer 1

Am may not understood exactly, but
Trying to save in a string and split it, then string[0] will give that 5511..
Is this not work?

Answer 2

how to save in a string and split is can you help? I'm really a beginner

Answer 3

for example if you consider first line as string, then
String str="5372 0 wait" ;
String s[] =str. split(" ") ;
System.out.println(s[0]); will output 5372.

But for the above, problem it depends your code, how you producing output.....!

Answer 4

what about string.length() and indexOf()?

Answer 5

String.length () returns the string length,
str.indexOf("5372") returns first occurrence of that string in str. Otherwise returns -1.
How you want to use these..?
If tid is a string, then
str="5372 0 wait" ;
str.substring(str.indexOf(tid), str.indexOf(tid)+tid.length()+1) ;
Returns 5372