Я пытаюсь прочитать данный текстовый файл и отсортировать его, используя сопоставление с образцом на основе указанного адреса. При чтении файла я получаю странную ошибку NumberFormatException в 45 строках 5-й аве, и я не понимаю, что этоОшибка означает, и почему она происходит от этой линии, но не от другой, как 22-х Бродвей, который печатает просто отлично.Также я должен использовать сканер для этого вместо этого или можно использовать bufferedreader для этого проекта, и как можно сохранить строки, не совпадающие с шаблоном, для последующего вывода в выводе в качестве адресов, которые не совпадают?
ТЕКСТОВЫЙ ФАЙЛ
123-ABC-4567, 15 W. 15th St., 50.1
456-BGT-9876,22 Broadway,24
QAZ-456-QWER, 100 East 20th Street,50
Q2Z-457-QWER, 200 East 20th Street, 49
6578-FGH-9845 ,,45 5th Ave, 12.2,
678-FGH-9846 ,45 5th Ave, 12.2
123-ABC-9999, 46 Foo Bar, 220.0
347-poy-3465, 101 B'way,24
КОД SO FAR
package csi311;
// Import some standard Java libraries.
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
public class HelloCsi311 {
/**
* Class construtor.
*/
public HelloCsi311() {
}
/**
* @param filename the name of a file to read in
* @throws Exception on anything bad happening
*/
public void run(String filename) throws Exception {
System.out.println("Hello world");
if (filename != null) {
readFile(filename);
}
}
/**
* @param filename the name of a file to read in
* @throws Exception on anything bad happening
*/
private void readFile(String filename) throws Exception {
System.out.println("Dumping file " + filename);
// Open the file and connect it to a buffered reader.
BufferedReader br = new BufferedReader(new FileReader(filename));
String line = null;
String pattern = "^\\d\\d\\d-[A-Z][A-Z][A-Z]-\\d\\d\\d\\d";
String address = "\\d{1,3}\\s\\[A-Za-z]{2,20}";
// Get lines from the file one at a time until there are no more.
while ((line = br.readLine()) != null) {
String[] result = line.split(",");
for(String str : result)
{
String pkgId = result[0].trim().toUpperCase();
String pkgAddr = result[1];
Float f = Float.valueOf(result[2]);
if (!pkgId.matches(pattern)) {
}
else
System.out.println(str);
}
}
// Close the buffer and the underlying file.
br.close();
}
/**
* @param args filename
*/
public static void main(String[] args) {
// Make an instance of the class.
HelloCsi311 theApp = new HelloCsi311();
String filename = null;
// If a command line argument was given, use it as the filename.
if (args.length > 0) {
filename = args[0];
}
try {
// Run the run(), passing in the filename, null if not specified.
theApp.run(filename);
}
catch (Exception e) {
// If anything bad happens, report it.
System.out.println("Something bad happened!");
e.printStackTrace();
}
}
}
ОШИБКА Я получаю
java.lang.NumberFormatException: For input string: "45 5th Ave"
at sun.misc.FloatingDecimal.readJavaFormatString(Unknown Source)
at sun.misc.FloatingDecimal.parseFloat(Unknown Source)
at java.lang.Float.parseFloat(Unknown Source)
at java.lang.Float.valueOf(Unknown Source)
at csi311.HelloCsi311.readFile(HelloCsi311.java:52)
at csi311.HelloCsi311.run(HelloCsi311.java:29)
at csi311.HelloCsi311.main(HelloCsi311.java:87)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at edu.rice.cs.drjava.model.compiler.JavacCompiler.runCommand(JavacCompiler.java:267)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at edu.rice.cs.dynamicjava.symbol.JavaClass$JavaMethod.evaluate(JavaClass.java:362)
at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.handleMethodCall(ExpressionEvaluator.java:92)
at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.visit(ExpressionEvaluator.java:84)
at koala.dynamicjava.tree.StaticMethodCall.acceptVisitor(StaticMethodCall.java:121)
at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.value(ExpressionEvaluator.java:38)
at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.value(ExpressionEvaluator.java:37)
at edu.rice.cs.dynamicjava.interpreter.StatementEvaluator.visit(StatementEvaluator.java:106)
at edu.rice.cs.dynamicjava.interpreter.StatementEvaluator.visit(StatementEvaluator.java:29)
at koala.dynamicjava.tree.ExpressionStatement.acceptVisitor(ExpressionStatement.java:101)
at edu.rice.cs.dynamicjava.interpreter.StatementEvaluator.evaluateSequence(StatementEvaluator.java:66)
at edu.rice.cs.dynamicjava.interpreter.Interpreter.evaluate(Interpreter.java:77)
at edu.rice.cs.dynamicjava.interpreter.Interpreter.interpret(Interpreter.java:47)
at edu.rice.cs.drjava.model.repl.newjvm.InterpreterJVM.interpret(InterpreterJVM.java:249)
at edu.rice.cs.drjava.model.repl.newjvm.InterpreterJVM.interpret(InterpreterJVM.java:222)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
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