write a program to input a number check and print either number is a duck number or not using for loop in java.
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Answer:
import java.util.Scanner;
public class Example15 {
public static void main(String args[])
{
Scanner sc = new Scanner(System.in);
System.out.print("Input a number : ");
String nstr = sc.nextLine();
int l = nstr.length();
int ctr = 0;
char chr;
for(int i=1;i<l;i++)
{
chr = nstr.charAt(i);
if(chr=='0')
ctr++;
}
char f = nstr.charAt(0);
if(ctr>0 && f!='0')
System.out.println("Duck number");
else
System.out.println("Not a duck number");
}
}
Explanation:
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