Question

1. JAVA
2. We have written a reclusive method to print all the possible answers to n true/false problems. Write method using iteration to print all the answers for n true/false questions. For example, if n = 2, then the output will be:

TT

TF

FT

FF

2. Write an iterative solution for the above problem.

Answer 1

Screenshot of code:

Output:

code:

import java.util.Scanner;
class Main
{
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
int i,n,j,k,num;
System.out.print("Enter n: ");
n=sc.nextInt();
k=1<<n;
for(i=0;i<k;i++)
{
num=i;
String s="";
while(num>0)
{
if(num%2==0)
s='0'+s;
else
s='1'+s;
num/=2;
}
while(s.length()<n)
s='0'+s;
for(j=0;j<n;j++)
{
if(s.charAt(j)=='0')
System.out.print('F');
else
System.out.print('T');
}
System.out.println();
}
}
}

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