NZEC in Java

While coding in different cutthroat destinations, many individuals probably experienced NZEC blunders. NZEC (non-zero exit code), as the name proposes, happens when your code is neglected to bring 0 back. At the point when a code returns 0, it implies it is effectively executed. Any other way, it will return some other number contingent upon the kind of blunder.

At the point when the program closes, it should return "0" to show in the event that it completed fine and can't do so, it causes NZEC. Obviously, there are more cases related to NZEC.

NZEC is a runtime blunder. It, for the most part, happens when a negative cluster file is accessed, or the program which we have reviewed takes more space than the assigned memory for our program to run.

When does the NZEC Error Occur?

NZEC error occurs at run time. So it is a run time error. In the case of arrays, the NZEC error occurs when the index becomes negative.

NZEC occurs mainly due to:

Incorrect Memory Access
Infinite Recursion
Typically implies that your program has either crashed or raised an uncaught exception.
Numerous runtime blunders.
Use of an outside library that isn't utilized by the appointed authority

How to Debug the NZEC Error in Java

In languages such as java, python, etc., we have exception handling techniques. By using this technique, we can resolve the NZEC error in java.

Infinity Recursion

A function or a method call by itself directly or indirectly until the base condition is satisfied is called recursion.

Utilizing recursion, specific issues can be tackled without any problem. Instances of such cases are DFS, BFS, Towers of Hanoi (TOH), Inorder/Preorder/Postorder Tree traversals, DFS, and so forth.

NOTE: Infinity Recursion happens when the recursion doesn't end after a limited number of recursive calls. As the base condition is never met, the recursion continues endlessly.

Example program on infinity recursion:

// program to demonstrate infinity recursion in java
// importing the required packages 
import java.io.*;
import java.util.*;
class HelloWorld
{
// recursive method
void JavaTpoint(int x)
{
	// Giving the base Condition
	if (x == 0)
		return;

	// Printing the value of x until the base condition is satisfied
	System.out.print( x +" ");

	// method is calling by itself
	JavaTpoint(x);
}
public static void main(String[] args)
	{
	// to read input from the user we are creating an object sc to the scanner class
	Scanner sc = new Scanner(System.in);
	System.out.print(" Enter the value of x: ");
	// reading input from the user
	int x = sc.nextInt();
	// creating an object to the HelloWorld class to access the HelloWorld class
	HelloWorld obj = new HelloWorld();
	// calling the JavaTpoint Method
	obj.JavaTpoint(x);
	}
}

Output:

Example program for negative array index:

// program to demonstrate NZEC error in java
// importing the required packages and classes
import java.io.*;
import java.util.*;

class HelloWorld
{
    public static void main(String args[])
    {
        // to read input from the user we are creating an object sc to the scanner class
        Scanner sc = new Scanner(System.in);
        System.out.println(" Enter the size of the array: ");
    // reading the size of the array
        int n=sc.nextInt();
        // declaring an array
        int a[] = new int[n];
        System.out.println(" Enter the array elements: ");
        // reading the array elements 
        for( int i=0; i<n; i++)
       {
            a[i] = sc.nextInt();
        }
        // printing the elements of the array
        System.out.println(" The array elements are: ");
        for(int i=-1; i<n; i++)
        {
            System.out.println(a[i]);
        }
    }
}

Output:

To overcome:

// program to demonstrate NZEC error in java
// importing the required packages and classes
import java.io.*;
import java.util.*;

class HelloWorld
{
    public static void main(String args[])
    {
        // to read input from the user we are creating an object sc to the scanner class
        Scanner sc = new Scanner(System.in);
        System.out.println(" Enter the size of the array: ");
        // reading the size of the array
        int n=sc.nextInt();
        // declaring an array
        int a[] = new int[n];
        System.out.println(" Enter the array elements: ");
        // reading the array elements 
        for( int i=0; i<n; i++)
        {
            a[i] = sc.nextInt();
        }
        // printing the elements of the array
        System.out.println(" The array elements are: ");
        try
        {
        for(int i=-1; i<n; i++)
        {
            System.out.print(a[i]);
        }
        }
         catch(Exception e)
   {
            System.out.println(e);
        }
    }
}

Few Noticeable Purposes behind NZEC Error

Infinity Recursion or, then again, assuming you have run out of stack memory.
Information and result are NOT precisely the same as the experiments.
In the web-based stages, test your program utilizing a PC code which coordinates your result with the predefined yields precisely.
This kind of blunder is additionally shown when your program is performing essential programming botches like divided by 0.
Check for the upsides of your factors. They can be helpless against integer flow.

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