generic argument java
static void fromArrayToCollection(Object[] a, Collection<?> c) {
for (Object o : a) {
c.add(o); // compile-time error
}
}generic argument java
static void fromArrayToCollection(Object[] a, Collection<?> c) {
for (Object o : a) {
c.add(o); // compile-time error
}
}generic argument java
static void fromArrayToCollection(Object[] a, Collection<?> c) {
for (Object o : a) {
c.add(o); // compile-time error
}
}generics in java
import java.util.Scanner;
import reader.*;
public class Main {
public static void main(String[] args) throws Exception {
Scanner scanner = new Scanner(System.in);
String filePath = scanner.nextLine().trim();
System.out.println("The file path is " + filePath);
String type = filePath.substring(filePath.lastIndexOf('.') + 1).replaceAll("\\W", "");
System.out.println("The reader type is " + type);
AbstractReaderService reader = getReaderService(type);
// reader.read(filePath);
// reader.printContent();
}
private static AbstractReaderService getReaderService (String type) throws Exceptions.TypeNotFoundException {
switch (type) {
case "txt": return new TxtReaderService();
case "json": return new JsonReaderService();
default: throw new Exceptions().new TypeNotFoundException("There is no \"" + type + "\" type of reader.");
}
}
}generics in java
import java.util.Scanner;
import reader.*;
public class Main {
public static void main(String[] args) throws Exception {
Scanner scanner = new Scanner(System.in);
String filePath = scanner.nextLine().trim();
System.out.println("The file path is " + filePath);
String type = filePath.substring(filePath.lastIndexOf('.') + 1).replaceAll("\\W", "");
System.out.println("The reader type is " + type);
AbstractReaderService reader = getReaderService(type);
// reader.read(filePath);
// reader.printContent();
}
private static AbstractReaderService getReaderService (String type) throws Exceptions.TypeNotFoundException {
switch (type) {
case "txt": return new TxtReaderService();
case "json": return new JsonReaderService();
default: throw new Exceptions().new TypeNotFoundException("There is no \"" + type + "\" type of reader.");
}
}
}Copyright © 2021 Codeinu
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