How do you get java regex to match two different pattern

Question

Hi,
I am having trouble getting getting java regex to match two pattern: "unknown host" or "100%".
Here is a snippet of my code:
try{
Process child = Runtime.getRuntime().exec(" perl c:\\ping.pl");
BufferedReader in = new BufferedReader( new InputStreamReader( child.getInputStream() ));
String patternStr = "(unknown host | 100 %)";
Pattern pattern = Pattern.compile(patternStr);
Matcher matcher = pattern.matcher(" ");
String line = null;
while ( (line = in.readLine()) != null){
System.out.println(line);
matcher.reset(line);
if (matcher.find())
// line matches throws pattern
System.out.println("match string");
else
System.out.println("no matches");
I thought the "|" means OR but somehow it is not working.
kirk123

Answer 1

Hi,
with String patternStr = "(unknown host | 100 %)"; you are looking
for the strings "unknown host " OR " 100 %", with the spaces after host and before 100.
Try "(unknown host|100 %)"
hope, this will help you