Determine how many times the body of the loop will be executed and predict the output.

class dk4
{
public static void main(String args[])
{
int x=5,y=50; 
while(x<=y)
{
y=y/x;
System.out.println(y); 
}
}
}

Rewrite the following program using do while loop:

class Test
{
public static void main(String args[])
{
int x,c; 
for(x=10,c=20;c>=10;c=c-2)
{
x++;
System.out.println(x);
} 
}
}

Rewrite the following program using do while:

class Number
{
public static void main(String args[])
{
int i,n=191,c=0; 
for(i=1;i<=n;i++)
{
if(n%i==0) 
c=c+1;
}
if(c==2)
System.out.println("Prime"); 
else
System.out.println("Not Prime");
} 
}

Rewrite the following program using while loop:

import java.io.*; 
class Sample
{
public static void main(String args[]) throws IOException
{
int n,r;
InputStreamReader read = new InputStreamReader(System.in); 
BufferedReader in = new BufferedReader(read); 
System.out.println("Enter a number"); 
n=Integer.parseInt(in.readLine());
do
{
r=n%10;
n=n/10;
System.out.println(r);
}
while(n!=0);
}
}