given code is not running

public stat

Question

import java.io.Console;
import java.util.Random;
/**
 *
 * @author Asus
 */
public class Loopy {
  public static void main(String[] args) {
    Console console = System.console();
    String[] sweetFlavors = {"Caramel", "Cinnamon", "Watermelon",
                             "Baked Beans"};
    String[] savoryFlavors = {"Sea Salt", "Potato Chip", "Carrot",
                              "Barbeque Sauce"};
for(   String sweet :sweetFlavors){
for(String savory:savoryFlavors){

console.printf("%s and %s  %n" ,sweet,savory);
}
} 
  }}
Exception in thread "main" java.lang.NullPointerException
    at Printer.printString(Printer.java:13)
    at Printer.print(Printer.java:9)
    at Printer.main(Printer.java:18)
Command exited with non-zero status 1

Philipp Räse · Answer

Dear Md shujaul Haque,
I tried the code you offered by myself.
I think your problem is your Console class you set at your first line in your main method.
Have you a special purpose that you're using the "Console class"?
On my point of view this type of class has entered the java "universe" primarily for a better input-handling.
For a simple console output you better use the sout-command.
I tried it with a System.out.printf() and it works.
In the Java documentation was a refer to your ErrorException.
They said:
If this virtual machine has a console then it is represented by a unique instance of this class which can be obtained by invoking the System.console() method. If no console device is available then an invocation of that method will return null.
...
Unless otherwise specified, passing a null argument to any method in this class will cause a NullPointerException to be thrown.
https://docs.oracle.com/javase/7/docs/api/java/io/Console.html
I hope I was right so far and it helps at least a bit :)

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Md shujaul Haque

Md shujaul Haque

given code is not running public stat

1 Answer

Philipp Räse

Philipp Räse