SIMPLE LOGIC

EVEN ODD

class Evenodd
{
public static void main(String args [])
{
int num;
num=3;
if(num%2==0)
System.out.println("Even");
else
System.out.println("Odd");
}
}



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FIBONACCI

class Fibonacci
{
public static void main(String args[])
{
int a=1,b=1;
int c=0;
System.out.println("Fibonacci Series");
for(int i=0;i<5;i++)
{
System.out.println(" "+a);
c=a+b;
a=b;
b=c;
}
}
}

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GREATEST OF 3 NOS

class Greatest
{
public static void main(String args[])
{
int a=4;
int b=2;
int c=1;
if((a>b)&&(a>c))
System.out.println("A is greater");
else if(b>c)
System.out.println("B is greater");
else
System.out.println("C is greater");
}
}

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PALINDROME

class Palindrome
{
public static void main(String args[])
{
int num;
int rev=0;
int rem=0;
int k;
num=12;
k = num;
while(num>0)
{
rem=num%10;
rev=rev*10+rem;
num=num/10;
}
System.out.println("Reverse"+rev);
if(k==rev)
System.out.println("Palindrome");
else
System.out.println("Not A Palindrome");
}
}

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PRIME

class Prime
{
public static void main(String args[])
{
int num;
num=24;
int rem=0;
int count=0;
for(int i=1;i {
rem=num%i;
if(rem==0)
count=count+1;
}
if(count==1)
System.out.println("Number is prime");
else
System.out.println("Number is not prime");
}
}
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class Quadratic
{
public static void main(String args[])
{
double a,b,c,d,x,y;
a=1;
b=4;
c=4;
d=(b*b-4*a*c);
if(d<0)
{
System.out.print("No real roots");
}
else
{
x=((-b+Math.sqrt(d))/(2*a));
y=((-b-Math.sqrt(d))/(2*a));
System.out.println("The roots of quadartic equation are"+x+" "+y);
}
}
}
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class Sumdigits
{
public static void main(String args[])
{
int num;
int sum=0;
int rem=0;
num=141;
while(num>0)
{
rem=num%10;
sum=sum+rem;
num = num / 10;
}
System.out.println("Sum"+sum);
}
}
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