Write a Java-program to check the given number is valid or invalid(value must between 20 and 30)

Write a Java-program to check the given number is valid or invalid(value must between 20 and 30)

Program

public class Main
{
	public static void main(String args[])
	{
        int x=10;
        if(x>=20 && x<=30)
        {
            System.out.println("Valid Number");
        }
        else
        {
            System.out.println("Invalid Number");
        }
	}
}	

Invalid Number

Using CommandLine Arguments

public class Main
{
	public static void main(String args[])
	{
        int x;
        x=Integer.parseInt(args[0]);
        if(x>=20 && x<=30)
        {
            System.out.println("Valid Number");
        }
        else
        {
            System.out.println("Invalid Number");
        }
	}
}	

Invalid Number

Using Scanner Class

import java.util.*;
public class Main
{
	public static void main(String args[])
	{
        int x;
        Scanner s=new Scanner(System.in);
        System.out.println("Enter x Value");
        x=s.nextInt();
        if(x>=20 && x<=30)
        {
            System.out.println("Valid Number");
        }
        else
        {
            System.out.println("Invalid Number");
        }
	}
}	

Enter x value
10
Invalid Number

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