Predict the Output of the following Java program:

class dk2
{
public static void main(String args[])
{
int i=2,k=1;
while (++i<6)
k *= i;
System.out.println(k);
} 
}

Predict the Output of the following Java program:

class dk3
{
public static void main(String args[])
{
int m=2,n=15; 
for(int i=1;i<=5;i++)
{
m++;--n;
System.out.println("m="+m);
System.out.println("n="+n);
}
}
}

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 Pattern
{
public static void main(String args[])
{
int i,j; 
for(i=5;i>=1;i--)
{
System.out.print(i);
}
System.out.println();
} 
}