Page 182 - CA_Blue( J )_Class10
P. 182
t = n * n;
while(t>0)
{
r=t%10;
s=s+r;
t=t/10;
}
if(s==n)
System.out.println(n+ " Neon Number");
else
System.out.println(n+ " Not Neon Number");
}
}
31. Write a program to input two numbers and print the Greatest Common Divisor (GCD) of them.
Ans. import java.util.*;
class gcd
{
public static void main () {
Scanner sc = new Scanner (System.in);
int i, s = 0, a, b, g;
System.out.println("Enter two numbers:");
a=sc.nextInt();
b=sc.nextInt();
if(a>b)
g = a;
else
g = b;
i=g;
while(i>=1)
{
if(a%i==0 && b%i==0)
{ break;
}
i--;
}
System.out.println("GCD of " + a + " and " + b + " is " + i);
}
}
32. Write a program to input the Computer Applications marks of 10 students and print the grades each student got according to
the following criteria.
Marks Grade
Above 90 A
70 to 89 B
50 to 69 C
<50 D
Ans. import java.util.*;
class marks_grade
{
public static void main () {
Scanner sc = new Scanner (System.in);
int i, m;
for (i=1; i<=10; i++)
{
System.out.println("Enter marks of student : " + i);
m=sc.nextInt();
if(m>90)
180180 Touchpad Computer Applications-X

