Display the second line of a string in java

Question

Given a String like :

String str= "line1
line2
line3
line4";

How to display one specific line? For example the third one, like

System.out.println([...]str[...]);

which in terminal will display:

line3

You can't have a String like the one in your example because Java won't let you split strings over multiple lines without concatenation. — BunjiquoBianco, Sep 07 '12 at 15:10

score 2 · Accepted Answer · answered Sep 07 '12 at 15:13

2

You can use the split statement. It separates strings by a given regex. In this case the regex would be \n:

String[] lines;

  String regex= "\\n";
  lines = str.split(regex);

you can then acces line 3 by using:

String line3 = lines[2];

answered Sep 07 '12 at 15:13

Daniel André

score 1 · Answer 2 · answered Sep 07 '12 at 15:09

1

Split your input string depending on its formatting..

System.out.println(str.split('\\n')[2]);

See documentation for split() method here.

answered Sep 07 '12 at 15:09

Michal Klouda

score 1 · Answer 3 · edited Sep 07 '12 at 15:18

1

String[] strings = str.split('\\n');
if (strings.length > 1){
  return strings[1];
}

edited Sep 07 '12 at 15:18

kosa

answered Sep 07 '12 at 15:10

srini.venigalla

2

split() function returns String[]. This code will not compile. – Subhrajyoti Majumder Sep 07 '12 at 15:12
What if it's is a BufferedReader ? Is that the same procedure? – mastermind Sep 07 '12 at 15:23
@mastermind - No. That changes things because BufferedReader has a readLine() method that'll do the splitting on [\r]\n for you. – BunjiquoBianco Sep 07 '12 at 15:28

3 Answers3