A primary key is the answer. =)
Answer:
Following is given the solution of your question as required.
All the necessary descriptions are given in form of comments,
Sample output are also shown.
I hope it will help you!
Explanation:
I cannot see the options but I am guessing that it is just regular HTML
If that is the case the <meta></meta> tag can be used and should be placed within the <head></head> tag
Answer:
public class Digits
{
public static boolean allDigitsOdd(int num)
{
boolean flag=true;
int rem;
while(num>0)
{
rem=num%10;
num=num/10;
if(rem%2==0) // if a even digit found immediately breaks out of loop
{
flag=false;
break;
}
}
return flag; //returns result
}
public static void main(String args[])
{
System.out.println(allDigitsOdd(1375)); //returns true as all are odd digits
}
}
OUTPUT :
true
Explanation:
Above program has 2 static methods inside a class Digits. Logic behind above function is that a number is divided by 10 until it is less than 0. Each time its remainder by 0 is checked if even immediately breaks out of the loop.
To get the number ot decoder output:
2^n; where n is number of input
2^4
2 × 2 × 2 × 2 = 16 outputs
