(Decimal to Binary) Write a program that prompts the user to enter a decimal integer and displays its corresponding binary value.  Don’t use Java’s Integer.toBinaryString(int) in this program.  Your program must have the following method.

public static String toBinary(int n)

Binary.java

/**
 * Decimal to Binary.
 */
	import javax.swing.JOptionPane; // import JOptionPane
public class Binary {

	/** Main Method */
    public static void main(String[] args) {

		// Promt to user to enter decimal number.
    	int decimal = Integer.parseInt(JOptionPane.showInputDialog("Please enter the decimal number:"));

    	String binary = toBinary(decimal); // Decimal bumber convert to binary number

    	prntStr(decimal+" in decimal system is equal to "+binary+" in binary system."); // print.

    } // End of main method.

	/** toBinary Method */
	public static String toBinary(int decimal){

		String result="";
		int x;
			while(decimal>1){

				// convert to binary number.
	    		x	= decimal%2;
	    		decimal = decimal/2;

	    		result = x + result;

	    	} // End of while decimal>1

	    	result = decimal + result;

		return result;

	} // End of toBinary Method.

	/** prntStr Method */
    public static void prntStr (String s){

    	System.out.println(s);

    } // End of prnStr method.

} // End of public class.