basic java programs

1. ASSIGNMENT 1
ANJALI SOOREJ
IMCA-133
1. Write a program in Java to check if a number is even or odd in Java?
Program
import java.util.Scanner;
public class Even_or_Odd
{
public static void main(String args[])
{
System.out.print("Enter a number:");
Scanner input=new Scanner(System.in);
int num=input.nextInt();
if(num%2==0)
System.out.println(num + " is even");
else
System.out.println(num + " is odd");
}
}

2. Output

3. 2. Write a program in Java to find out if a number is prime in Java?
Program
import java.util.Scanner;
public class Prime
{
public static void main(String args[])
{
int f=0;
System.out.print("Enter a number:");
Scanner input=new Scanner(System.in);
int num=input.nextInt();
for(int i=2;i<=num/2;i++)
{
if(num%i==0)
{
f=1;
break;
}
}
if(f==0)
System.out.println(num + " is a prime number");
else
System.out.println(num + " is not a prime number");
}}

4. Output

5. 3. Write Java program to check if a number is palindrome in Java?
Program
import java.util.Scanner;
public class Palindrome
{
public static void main(String args[])
{
int d,sum=0;
System.out.print("Enter a number:");
Scanner input=new Scanner(System.in);
int num=input.nextInt();
int n=num;
while(n>0)
{
d=n%10;
sum=(sum*10)+d;
n=n/10;
}
if(num==sum)
System.out.println(num + " is palindrome");
else
System.out.println(num + " is not palindrome");
}
}

6. Output