diff --git a/JAVA/RupeeToDollarCONV.java b/JAVA/RupeeToDollarCONV.java
new file mode 100644
index 0000000..df36141
--- /dev/null
+++ b/JAVA/RupeeToDollarCONV.java
@@ -0,0 +1,132 @@
+// Java program to convert from
+// rupee to the dollar and vice-versa
+// using Java Swing
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+public class GFG {
+
+	// Function to convert from rupee
+	// to the dollar and vice-versa
+	// using Java Swing
+	public static void converter()
+	{
+
+		// Creating a new frame using JFrame
+		JFrame f = new JFrame("CONVERTER");
+
+		// Creating two labels
+		JLabel l1, l2;
+
+		// Creating two text fields.
+		// One for rupee and one for
+		// the dollar
+		JTextField t1, t2;
+
+		// Creating three buttons
+		JButton b1, b2, b3;
+
+		// Naming the labels and setting
+		// the bounds for the labels
+		l1 = new JLabel("Rupees:");
+		l1.setBounds(20, 40, 60, 30);
+		l2 = new JLabel("Dollars:");
+		l2.setBounds(170, 40, 60, 30);
+
+		// Initializing the text fields with
+		// 0 by default and setting the
+		// bounds for the text fields
+		t1 = new JTextField("0");
+		t1.setBounds(80, 40, 50, 30);
+		t2 = new JTextField("0");
+		t2.setBounds(240, 40, 50, 30);
+
+		// Creating a button for INR,
+		// one button for the dollar
+		// and one button to close
+		// and setting the bounds
+		b1 = new JButton("INR");
+		b1.setBounds(50, 80, 60, 15);
+		b2 = new JButton("Dollar");
+		b2.setBounds(190, 80, 60, 15);
+		b3 = new JButton("close");
+		b3.setBounds(150, 150, 60, 30);
+
+		// Adding action listener
+		b1.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e)
+			{
+				// Converting to double
+				double d
+					= Double.parseDouble(t1.getText());
+
+				// Converting rupees to dollars
+				double d1 = (d / 65.25);
+
+				// Getting the string value of the
+				// calculated value
+				String str1 = String.valueOf(d1);
+
+				// Placing it in the text box
+				t2.setText(str1);
+			}
+		});
+
+		// Adding action listener
+		b2.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e)
+			{
+				// Converting to double
+				double d2
+					= Double.parseDouble(t2.getText());
+
+				// converting Dollars to rupees
+				double d3 = (d2 * 65.25);
+
+				// Getting the string value of the
+				// calculated value
+				String str2 = String.valueOf(d3);
+
+				// Placing it in the text box
+				t1.setText(str2);
+			}
+		});
+
+		// Action listener to close the form
+		b3.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e)
+			{
+				f.dispose();
+			}
+		});
+
+		// Default method for closing the frame
+		f.addWindowListener(new WindowAdapter() {
+			public void windowClosing(WindowEvent e)
+			{
+				System.exit(0);
+			}
+		});
+
+		// Adding the created objects
+		// to the form
+		f.add(l1);
+		f.add(t1);
+		f.add(l2);
+		f.add(t2);
+		f.add(b1);
+		f.add(b2);
+		f.add(b3);
+
+		f.setLayout(null);
+		f.setSize(400, 300);
+		f.setVisible(true);
+	}
+
+	// Driver code
+	public static void main(String args[])
+	{
+		converter();
+	}
+}
diff --git a/kadane_algorithm.java b/kadane_algorithm.java
new file mode 100644
index 0000000..b3bf31c
--- /dev/null
+++ b/kadane_algorithm.java
@@ -0,0 +1,30 @@
+// Java program to print largest contiguous array sum
+import java.io.*;
+import java.util.*;
+
+class Kadane {
+	// Driver Code
+	public static void main(String[] args)
+	{
+		int[] a = { -2, -3, 4, -1, -2, 1, 5, -3 };
+		System.out.println("Maximum contiguous sum is "
+						+ maxSubArraySum(a));
+	}
+
+	// Function Call
+	static int maxSubArraySum(int a[])
+	{
+		int size = a.length;
+		int max_so_far = Integer.MIN_VALUE, max_ending_here
+											= 0;
+
+		for (int i = 0; i < size; i++) {
+			max_ending_here = max_ending_here + a[i];
+			if (max_so_far < max_ending_here)
+				max_so_far = max_ending_here;
+			if (max_ending_here < 0)
+				max_ending_here = 0;
+		}
+		return max_so_far;
+	}
+}