Added GreatestNumber.java

Java Codes for Beginner/GreatestNumber.java

@@ -0,0 +1,35 @@
+import java.util.Scanner;
+public class Greatest {
+    int num1,num2,num3;
+    public void setvalue(){
+        Scanner sc = new Scanner(System.in);
+        System.out.print("Enter the first number:");
+        num1 = sc.nextInt();
+        System.out.print("Enter the second number:");
+        num2 = sc.nextInt();
+        System.out.print("Enter the third number:");
+        num3 = sc.nextInt();
+        sc.close();
+    }
+    public void calcGreatest(){
+        if(num1 > num2 && num1 > num3)
+        {
+            System.out.println("Greatest number is:"+num1);
+        }
+        else if(num2 > num3)
+        {
+            System.out.println("Greatest number is:"+num2);
+        }
+        else
+        {
+            System.out.println("Greatest number is:"+num3);
+        }
+    }
+    public static void main(String[] args) {
+        System.out.println("Program to Find Greatest Number");
+        Greatest g = new Greatest();
+        g.setvalue();
+        g.calcGreatest();
+    }
+
+}