Java compilation error


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# 1  
Java compilation error

i am on red hat Linux .


Code:
package hiveudf;
import org.apache.hadoop.hive.ql.exec.UDF;
import org.apache.hadoop.io.Text;
public class lowercaseudf extends UDF {
    public Text evaluate(final Text s) {
        if (s == null) { return null;}
        return new Text(s.toString().lowerCase());
        }
        }
}


Code:
# javac -classpath /usr/hdp/2.6.5.0-292/hive2/lib/*:/usr/hdp/2.6.5.0-292/hadoop/*:/usr/hdp/2.6.5.0-292/hadoop-mapreduce/* lowercaseudf.java
lowercaseudf.java:7: error: cannot find symbol
        return new Text(s.toString().lowerCase());
                                    ^
  symbol:   method lowerCase()
  location: class String
1 error

# 2  
I think the correct Java method for lowerCase() is:

Code:
toLowerCase()

Maybe you can try:

Code:
 return new Text(s.toString().toLowerCase());

# 3  
I think the main problem is obtain in this code where this code have put.
Code:
 if (s == null) { return null;}
        return new Text(s.toString().lowerCase());

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# 4  
Quote:
Originally Posted by Neo
I think the correct Java method for lowerCase() is:

Code:
toLowerCase()

Maybe you can try:

Code:
 return new Text(s.toString().toLowerCase());

i agree,
toLowerCase() and not lowerCase().

Can't find symbol and in this case it's pointing to the method name lowerCase() means that this method does not existe.
# 5  
Quote:
Originally Posted by gulatisneha56
Excellent answer by Neo. I agree with you. Thank you.
gulatisneha56, you need to add more value than that to be a valued member here at unix.com. Most posts like yours are interpreted by members here as a precursor to spamming the site.

Caution is advised Smilie
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