added operations on Integers

operationsOnIntegers.java

@@ -0,0 +1,158 @@
+
+  To change this license header, choose License Headers in Project Properties.
+  To change this template file, choose Tools  Templates
+  and open the template in the editor.
+
+package Lab02;
+
+import java.util.Scanner;
+
+
+public class Q3 {
+    public static void main(String[] args)
+    {
+    int q = 0;
+    System.out.println(enter num to perform operations on);
+    Scanner sc=new Scanner(System.in);
+    q=sc.nextInt();
+    MyNumber num=new MyNumber(q);
+    System.out.println(Select an operation);
+    System.out.println(1isPositive  n2isNegative  n3isEven  n4isOdd  n5isPrime  n6factorial  n7Exit);
+    int o=sc.nextInt();
+        if(o==1)
+        {  
+        num.ispositive();
+        }
+        else if(o==2)
+        {
+        num.isnegative();
+        }
+        else if(o==3)
+        {
+        num.iseven();
+        }
+        else if(o==4)
+        {
+        num.isodd();
+        }
+        else if(o==5)
+        {
+        num.isprime();
+        }
+        else if(o==6)
+        {
+        num.factorial();
+        }
+        else if(o==7)
+        {
+        System.out.println(exit Pressed);
+        }
+         else
+        {
+        System.out.println(Invalid Input);
+        }
+    }
+
+}
+interface IntOperations 
+{
+public void ispositive();
+public void isnegative();
+public void iseven();
+public void isodd();
+public void isprime();
+public void factorial();
+
+}
+class MyNumber implements IntOperations
+{
+private int n=0;
+public MyNumber(int a)
+    {
+    n=a;
+
+    }
+
+public void ispositive()
+    {
+    System.out.println(checkig if num is positive);
+    if(n=0)
+        {
+        System.out.println(it is positive);
+        }
+    else
+        {
+        System.out.println(it is not positive);
+        }
+    }
+public void isnegative()
+    {
+    System.out.println(checkig if num is negative);
+    if(n0)
+        {
+        System.out.println(it is negative);
+        }
+    else
+        {
+        System.out.println(it is not negative);
+        }
+    }
+public void iseven()
+    {
+    System.out.println(checkig if num is even);
+    if(n%2==0)
+        {
+        System.out.println(it is even);
+        }
+    else
+        {
+        System.out.println(it is not even);
+        }
+    }
+public void isodd()
+    {
+    System.out.println(checkig if num is odd);
+    if(n%2!=0)
+        {
+        System.out.println(it is odd);
+        }
+    else
+        {
+        System.out.println(it is not odd);
+        }
+    }
+public void isprime()
+    {
+    System.out.println(checkig if num is prime);
+    int flag=0;
+for(int i=2;in;i++)
+{
+if(n%i==0)
+{
+flag=1;
+}
+}
+
+if(flag==1)
+{
+System.out.println(n+ No is not prime);
+}
+else
+{
+System.out.println(n+ No is prime);
+}
+
+}
+
+public void factorial()
+    {
+    System.out.println(calculating factorial of num);
+    int fact=1;
+for(int i=1;i=n;i++)
+{
+fact=facti;
+}
+
+System.out.println(Factorialof+n+is=+fact);
+    }
+}