5 5 Marks Read Input One Line Time Done Output Lines Case Insensitive Sorted Order Package Q43904603
5. [5 marks] Read the input one line at a time. When youare done, output all the lines in case-insensitive sortedorder.
package comp2402a1;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
public class Part0 {
/**
* Read lines one at a time from r. After reading all lines,output
* all lines to w, outputting duplicate lines only once. Note: theorder
* of the output is unspecified and may have nothing to do with theorder
* that lines appear in r.
* @param r the reader to read from
* @param w the writer to write to
* @throws IOException
*/
public static void doIt(BufferedReader r, PrintWriter w) throwsIOException {
Set<String> s = new HashSet<>();
for (String line = r.readLine(); line != null; line =r.readLine()) {
s.add(line);
System.out.println(line);
}
for (String text : s) {
w.println(text);
System.out.println(“t”);
}
}
/**
* The driver. Open a BufferedReader and a PrintWriter, either fromSystem.in
* and System.out or from filenames specified on the command line,then call doIt.
* @param args
*/
public static void main(String[] args) {
try {
BufferedReader r;
PrintWriter w;
if (args.length == 0) {
r = new BufferedReader(new InputStreamReader(System.in));
w = new PrintWriter(System.out);
} else if (args.length == 1) {
r = new BufferedReader(new FileReader(args[0]));
w = new PrintWriter(System.out);
} else {
r = new BufferedReader(new FileReader(args[0]));
w = new PrintWriter(new FileWriter(args[1]));
}
long start = System.nanoTime();
doIt(r, w);
w.flush();
long stop = System.nanoTime();
System.out.println(“Execution time: ” + 10e-9 *(stop-start));
} catch (IOException e) {
System.err.println(e);
System.exit(-1);
}
}
}
Expert Answer
Answer to 5. [5 marks] Read the input one line at a time. When you are done, output all the lines in case-insensitive sorted order…
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