Add files via upload

AreaOfCircle.java

@@ -0,0 +1,22 @@
+import java.util.Scanner;
+
+class AreaOfCircle 
+{
+	public static void main(String[] args) 
+	{
+		Scanner s = new Scanner(System.in);
+		System.out.print("Enter the radius of circle: ");
+		int r = s.nextInt();
+		s.close();
+
+		System.out.println("The Area of Circle is = "+ area(r));
+
+	}
+
+     public static float area(int r)
+	{
+		 return 3.14f*(r*r);
+	}
+
+
+}

Armstrong.java

@@ -0,0 +1,50 @@
+import java.util.Scanner;
+
+
+class Armstrong
+{
+	public static void main(String[] args) 
+	{
+		Scanner s = new Scanner(System.in);
+
+		// System.out.println("Enter the number of digits: ");
+		// int len = s.nextInt();
+
+		System.out.println("Enter a Number to check: ");
+		int n = s.nextInt();
+		int str = n;
+		int str1 = n;
+		//len = String.valueOf(str).length();
+		int   sum = 0, count=0;
+		s.close();
+
+		while(str1!=0){
+			count++;
+			str1/=10;
+		}
+		// System.out.println(count);
+
+		while(n!=0){
+
+			int rem = n%10;
+
+			//int cube = rem*rem*rem;
+			int pow = 1;
+			for(int i = 1; i<=count; i++)
+			{
+				pow = pow * rem;
+			}
+
+			 sum = sum + pow;
+			//  sum = sum + (Math.pow(rem,count));
+
+			 n/=10;
+		}			
+		if(str == sum)
+			System.out.println(str+ " is an ArmStrong Number");
+		else
+			System.out.println(str + " is Not a ArmStrong Number");
+
+
+	}
+}

Double.java

@@ -0,0 +1,21 @@
+class Double
+{
+public static void main(String[] args)
+{
+	System.out.println("Hello Sarwesh");
+
+	//byte to all
+	double i = 1.3;
+	byte a = (byte)i;
+	short b = (short)i;
+	int c = (int)i;
+	long d = (long)i;
+	float e = (float)i;
+	System.out.println(a);
+	System.out.println(b);
+	System.out.println(c);
+	System.out.println(d);
+	System.out.println(e);
+
+}
+}

EvenOdd.java

@@ -0,0 +1,28 @@
+import java.util.Scanner;
+
+class StrongNumber 
+{
+	public static void main(String[] args) 
+	{
+		Scanner s = new Scanner(System.in);
+		System.out.println("Enter a value: ");
+		int n = s.nextInt();
+		int rem, res=1, sum=0;
+		s.close();
+
+		while(n!=0){
+
+			rem = n%10;
+
+			while(rem!=0){
+
+				res = res*rem;
+				rem--;
+				sum = sum + res;
+			}
+			n = n/10;
+
+
+		}
+	}
+}

Float.java

@@ -0,0 +1,21 @@
+class Float
+{
+public static void main(String[] args)
+{
+	System.out.println("Hello Sarwesh");
+
+	//byte to all
+	float i = 1.0f;
+	byte a = (byte)i;
+	short b = (short)i;
+	int c = (int)i;
+	long d = (long)i;
+	double e = (double)i;
+	System.out.println(a);
+	System.out.println(b);
+	System.out.println(c);
+	System.out.println(d);
+	System.out.println(e);
+
+}
+}

FunctionCall.java

@@ -0,0 +1,18 @@
+class FunctionCall 
+{
+	public static void main(String[] args) 
+	{
+
+		int a = 10;
+		int b = 12, c=(int)display(a,b) ;
+		System.out.println(c);
+
+	}
+	public static double display(int c, int d)
+	{
+		System.out.println("Addition is");
+		return (c+d);
+	}
+
+
+}

Hello.java

@@ -0,0 +1,21 @@
+class Hello
+{
+public static void main(String[] args)
+{
+	System.out.println("Hello Sarwesh");
+
+	//byte to all
+	byte i = 1;
+	short a = (short)i;
+	int b = (int)i;
+	long c = (long)i;
+	float d = (float)i;
+	double e = (double)i;
+	System.out.println(a);
+	System.out.println(b);
+	System.out.println(c);
+	System.out.println(d);
+	System.out.println(e);
+
+}
+}

Int.java

@@ -0,0 +1,21 @@
+class Int
+{
+public static void main(String[] args)
+{
+	System.out.println("Hello Sarwesh");
+
+	//byte to all
+	int i = 1;
+	byte a = (byte)i;
+	short b = (short)i;
+	long c = (long)i;
+	float d = (float)i;
+	double e = (double)i;
+	System.out.println(a);
+	System.out.println(b);
+	System.out.println(c);
+	System.out.println(d);
+	System.out.println(e);
+
+}
+}

LL_inbuilt.java

@@ -0,0 +1,32 @@
+import java.util.LinkedList;
+// import java.util.Stack;
+
+
+
+
+public class LL_inbuilt {
+    public static void main(String[] args) {
+        LinkedList<Integer> l = new LinkedList<>();
+
+        l.add(4);
+        l.add(5);
+        l.add(6);
+        l.add(7);
+        l.add(8);
+        l.add(0, 1);
+        System.out.println(l.element()); 
+        int i;
+        for( i = 0; i<l.size()-1;i++)
+        {
+            System.out.print(l.get(i)+"->");
+        }
+        System.out.println(l.get(i));
+        // int x = l.size(),i=0;
+        //     while(x-- !=0)
+        //     {
+        //         System.out.print(l.get(i++)+"->");
+
+        //     }
+
+    }
+}

LinkedList.java

@@ -0,0 +1,123 @@
+class Node
+{
+    int data;
+    Node next;
+}
+
+class Data{
+
+    Node head;
+
+
+    public void insert(int data)
+    {
+
+       Node node = new Node();
+
+       node.data = data;
+       node.next = null;
+
+
+
+        if(head == null)
+        {
+            head = node; 
+        }
+        else
+        {
+            Node temp = head;
+
+            while(temp.next!=null)
+            {
+                temp = temp.next;
+            }
+            temp.next = node;
+        }
+    }
+
+    public void insertBeg(int data)
+    {
+        Node node = new Node();
+        node.data = data;
+        // node.next = null;
+
+        node.next = head;
+        head = node;
+    }
+
+    public void insertAfter(int data, int loc)
+    {
+        Node node = new Node();
+        node.data = data; 
+
+        Node temp = head;
+
+        if(loc == 0)
+        {
+            insertBeg(data);
+        }
+        else{
+        for (int i = 0; i <loc-1; i++) {
+            temp = temp.next;
+        }
+        node.next = temp.next;
+        temp.next = node;
+    }
+    }
+
+    public void deleteAt(int index)
+    {
+        Node n = head;
+        if(index == 0)
+        {
+            head = head.next;
+        }
+        else{
+            for (int i = 1; i <index; i++) {
+                n = n.next;
+            }
+            Node n1 = null;
+            n1 = n.next;
+            n.next = n1.next;
+        }
+    }
+
+
+    public void show(){
+        Node node = head;
+
+        while(node.next!=null)
+        {
+            System.out.print(node.data+"->");
+            node = node.next;
+        }
+        System.out.println(node.data); 
+    }
+}
+
+
+public class LinkedList {
+
+    public static void main(String[] args) {
+        Data d = new Data();
+
+        d.insert(1);
+        d.insert(2);
+        d.insert(3);
+        d.insert(4);
+        d.insert(5);
+        d.insert(6);
+        d.insert(7);
+        // d.insertBeg(12);
+        // d.insertBeg(13);
+        // d.insertAfter(14, 2);
+        // d.insertAfter(15, 0);
+        // d.insertAfter(155, 4);
+        d.deleteAt(2);
+        d.deleteAt(0);
+
+
+        d.show();
+    }
+
+}

LocalVariables.java

@@ -0,0 +1,22 @@
+class LocalVariables 
+{
+	static int i;
+	static double d = 20.98;
+	public static void main(String[] args) 
+	{
+		int a = 20; //local variable doesn't have a default value
+
+			System.out.println(i);
+			System.out.println(a);
+			System.out.println(d);
+			demo(a);
+
+	}
+
+	public static void demo(int a)
+	{
+		System.out.println(a);
+		System.out.println(d);
+	}
+
+}