Archive for the ‘Java Source Code’ Category
Objectives :
- How to convert Decimal to Hexadecimal in Java?
Java Program to convert Decimal values to Hexadecimal values :
import java.util.Scanner;
public class DecimalToHexadecimal {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter decimal number you like: ");
int deci = input.nextInt();
System.out.println("The hexadecimal number for decimal "
+ deci + " is " + convert(deci));
}
public static String convert(int decimal) {
String hex = "";
while (decimal != 0) {
int hexValue = decimal % 16;
hex = toHexadecimal(hexValue) + hex;
decimal = decimal / 16;
}
return hex;
}
public static char toHexadecimal(int hexValue) {
if (hexValue <= 9 && hexValue >= 0) {
return (char) (hexValue + '0');
} else {
return (char) (hexValue - 10 + 'A');
}
}
}
Output :
Enter decimal number you like: 1234
The hexadecimal number for decimal 1234 is 4D2
Advertisements
Tags: Best Java Tutorials, Classroom Training & Workshop on Core Java, Core Java Tutorial, Core Java Tutorials, Decimal to Hexadecimal Conversion, Decimal to Hexadecimal Conversion in Java, Free Java Tutorials, Hexadecimal to Decimal Conversion, How to convert Decimal to Hexadecimal in Java?, How to convert Hexadecimal to Decimal in Java?, Java program to convert Decimal to Hexadecimal, Java Program to convert Decimal values to Hexadecimal values, Java Tutorial, Java tutorial for beginners, Java Tutorials
Objectives :
- Convert Decimal number to Roman number
- Convert Decimal numeral to Roman numeral
- How to convert a decimal number to roman number
- Write a program that converts a decimal number to Roman number.
- Write a program that converts a decimal number to Roman number. Decimal Number is accepted using Scanner class at the time of execution.
- Write a program that converts a decimal number to Roman number. Decimal Number is accepted as command line input at the time of execution.
Program :
Java program that converts a decimal number to Roman number. Decimal Number is accepted using Scanner class at the time of execution.
import java.util.Scanner;
public class DecimalToRoman {
private static String toRoman(int num) {
String[] romanCharacters = { "M", "CM", "D", "C", "XC", "L", "X", "IX", "V", "I" };
int[] romanValues = { 1000, 900, 500, 100, 90, 50, 10, 9, 5, 1 };
String result = "";
for (int i = 0; i < romanValues.length; i++) {
int numberInPlace = num / romanValues[i];
if (numberInPlace == 0) continue;
result += numberInPlace == 4 && i > 0? romanCharacters[i] + romanCharacters[i - 1]:
new String(new char[numberInPlace]).replace("\0",romanCharacters[i]);
num = num % romanValues[i];
}
return result;
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter a number : ");
int decimal = scanner.nextInt();
System.out.println(toRoman(decimal));
}
}
Output :
Enter a number : 1234
MCCXXXIV
Java program that converts a decimal number to Roman number. Decimal Number is accepted as command line input at the time of execution.
public class DecimalToRoman {
private static String toRoman(int num) {
String[] romanCharacters = { "M", "CM", "D", "C", "XC", "L", "X", "IX", "V", "I" };
int[] romanValues = { 1000, 900, 500, 100, 90, 50, 10, 9, 5, 1 };
String result = "";
for (int i = 0; i < romanValues.length; i++) {
int numberInPlace = num / romanValues[i];
if (numberInPlace == 0) continue;
result += numberInPlace == 4 && i > 0? romanCharacters[i] + romanCharacters[i - 1]:
new String(new char[numberInPlace]).replace("\0",romanCharacters[i]);
num = num % romanValues[i];
}
return result;
}
public static void main(String[] args) {
if(args.length<1 || args.length>1){
System.out.println("Wrong input");
}else{
String number = args[0];
int decimal = Integer.parseInt(number);
System.out.println(toRoman(decimal));
}
}
}
Tags: Best Java Trainer in Pune, Best Java Training in Pune, Best Java Tutorials, Convert Decimal number to Roman number, Convert Decimal numeral to Roman numeral, Core Java Tutorial, Core Java Tutorials, Free Java Project, Free Java Source Code, Free Java Tutorials, How to convert a decimal number to roman number, java program, Java Program for Beginners, Java program for Command Line Argument, Java Program for Scanner class, Java program that converts a decimal number to Roman number. Decimal Number is accepted as command line input at the time of execution., Java program that converts a decimal number to Roman number. Decimal Number is accepted using Scanner class at the time of execution., Java Program to Convert Decimal to Roman, java projects, Java Training in Pune, Java Tutorial, Java tutorial for beginners, Java Tutorials, Java Tutorials for Beginners, Open Source Java Project, Write a program that converts a decimal number to Roman number, Write a program that converts a decimal number to Roman number. Decimal Number is accepted as command line input at the time of execution, Write a program that converts a decimal number to Roman number. Decimal Number is accepted using Scanner class at the time of execution
Objective :
- Passing data between activities in Android
- Passing multiple data between activities in Android
- Passing array between activities in Android
- Passing ArrayList between activities in Android
- Passing ArrayList to another activity in Android
- Sending data via Intent in Android
- Sending multiple data via Intent in Android
- Sending array between activities in Android
- Sending ArrayList between activities in Android
- Sending ArrayList to another activity in Android
- Sending data via Intent and Bundle in Android
- Sending multiple data via Intent and Bundle in Android
- Passing array between activities in Android using Intent and Bundle
- How to pass array to another activity in Android?
- How to pass array between activities in Android?
- How to pass data to another activity in Android?
- How to pass data to activity in Android?
- How to pass data to between activities in Android?
- How to pass ArrayList to another activity in Android?
- How to pass ArrayList between activities in Android?
Code for passing data between activities in Android :
ActivityOne.java
String value = "Hello!";
Intent in = new Intent(this,ActivityTwo.class);
in = putExtra("Key", value);
startActivity(in);
ActivityTwo.java
Bundle bundle = getIntent().getExtras();
String valueReceived = bundle .getString("Key");
Code for passing multiple data or values between activities in Android :
Method 1 : Using Intent to pass data and Bundle to extract data between activities in Android
ActivityOne.java
String value1 = "Hello!";
String value2 = "Hi!";
Intent in = new Intent(this,ActivityTwo.class);
in = putExtra("Key1", value1); startActivity(in);
in = putExtra("Key2", value2); startActivity(in);
ActivityTwo.java
Bundle bundle = getIntent().getExtras();
String valueReceived1 = bundle .getString("Key1");
String valueReceived2 = bundle .getString("Key2");
Method 2 : Using Bundle to pass and to extract data between activities in Android
ActivityOne.java
String value1 = "Hello!";
String value2 = "Hi!";
Intent in = new Intent(this,ActivityTwo.class);
Bundle bundle = new Bundle();
bundle.putString("Key1", value1);
bundle.putString("Key2", value2);
in = putExtras(bundle);
startActivity(in);
ActivityTwo.java
Bundle bundle = getIntent().getExtras();
String valueReceived1 = bundle .getString("Key1");
String valueReceived2 = bundle .getString("Key2");
Code for passing array between activities in Android :
ActivityOne.java
String[] array = new String[]{"Item1", "Item2", "item3", "Item4", "item5"};
Intent in = new Intent(this,ActivityTwo.class);
Bundle bundle = new Bundle();
bundle.putStringArray("MyArray", array);
in = putExtras(bundle);
startActivity(in);
ActivityTwo.java
Bundle bundle = getIntent().getExtras();
String arrayReceived[] = bundle.getStringArray("MyArray");
Code for passing ArrayList between activities in Android :
ActivityOne.java
ArrayList<String> array = new ArrayList<String>();
array.add("Hello");
array.add("Hi");
array.add("Bye");
Intent intent = new Intent(this, ActivityTwo.class);
intent.putExtra("array_list", array);
startActivity(intent);
ActivityTwo.java
Bundle bundle = getIntent().getExtras();
ArrayList<String> array = (ArrayList<String>) bundle.getStringArrayList("array_list");
Tags: Aatul Palandurkar, Android, Android Activity, Android Application Development Training, Android apps, Android Classes in Pune, Android Codes, Android Course, Android Trainer, Android Trainer in Pune, Android Training, Android Training and Internship, Android Training at Dange Chowk, Android Training in Akurdi, Android Training in Chinchwad, Android Training in Dange Chowk, Android Training in Hinjewadi, Android Training in India, Android Training in Nigdi, Android Training in Pune, Android Training in Sanghvi, Android Training in Wakad, Android Workshop, Atul Palandurkar, Bundle Example in Android, Code for passing data between activities in Android, Code for passing multiple data between activities in Android, Code for passing multiple values between activities in Android, Corporate Android Trainer, Developing Android Applications in Eclipse, Free Android App, Free Android Application, How to pass array between activities in Android?, How to pass array to another activity in Android?, How to pass ArrayList between activities in Android?, How to pass ArrayList to another activity in Android?, How to pass data to activity in Android?, How to pass data to another activity in Android?, How to pass data to between activities in Android?, Intent Example in Android, Klouds AnCyber Technologies Pvt Ltd, Passing array between activities in Android, Passing array between activities in Android using Intent and Bundle, Passing ArrayList between activities in Android, Passing ArrayList to another activity in Android, Passing data between activities in Android, Passing multiple data between activities in Android, Sending array between activities in Android, Sending ArrayList between activities in Android, Sending ArrayList to another activity in Android, Sending data via Intent and Bundle in Android, Sending data via Intent in Android, Sending multiple data via Intent and Bundle in Android, Sending multiple data via Intent in Android, Using Bundle in Android, Using Intent in Android
Objectives :
- Binary to Decimal Conversion
- Converting Binary to Decimal
- Write a program to convert binary to decimal
- Write a program to convert binary number to decimal format
- Write a program to convert binary to decimal using Scanner class
- Write a program to convert binary to decimal, take input using Scanner class
Java Program :
import java.util.Scanner;
public class BinaryToDecimal {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter binary number: ");
String binary = scanner.nextLine();
int decimal = binaryToDecimal(binary);
System.out.println("Decimal equivalent of "+ binary +" is "+ decimal);
}
private static int binaryToDecimal(String binary) {
final int base = 2;
int decimal = 0;
for (int i = 0; i < binary.length(); i++) {
if (binary.charAt(i) == '0') {
decimal += 0 * Math.pow(base, binary.length() - i - 1);
} else if (binary.charAt(i) == '1') {
decimal += 1 * Math.pow(base, binary.length() - i - 1);
} else {
System.out.println("Invalid Binary Number");
System.out.println("Binary Number Contains only 0's or 1's");
System.exit(0);
}
}
return decimal;
}
}
Output :
Enter binary number: 1110
Decimal equivalent of 1110 is 14
Tags: Best Java Trainer in Pune, Best Java Training in Pune, binary to decimal conversion, Converting Binary to Decimal, java program, Java Program for Beginners, Java Program for Scanner class, Java Program to Convert Binary format to Decimal number, Java Program to Convert Binary to Decimal, Java Programming, Java Training, Java Training in Pune, Java Training Videos, take input using Scanner class, Write a program to convert binary number to decimal format, Write a program to convert binary to decimal, Write a program to convert binary to decimal using Scanner class
Objectives :
- Write a program to compute sum of digits of a given number.
- Write a program to find sum of digits of a given number.
- Write a program to calculate sum of digits of a given number.
- Write a program to compute sum of digits of a given integer number.
- Write a program to compute sum of digits of a number entered via Command Line.
- Write a program to compute sum of digits of a given number. Take input from Command Line.
- Write a program to compute sum of digits of a given number. Take input using Scanner class.
Following is the Java Program to compute Sum of Digits of a given integer number;
Method 1 : Java Program to find Sum of Digits when number is entered from command line
class SumOfDigits
{
public static void main(String args[])
{
int n;
int a=0;
int sum=0;
//taking integer number from command line and parsing the same
n=Integer.parseInt(args[0]);
while(n!=0)
{
a=n%10;
n=n/10;
sum=sum+a;
}
System.out.println("Sum of digits: " + sum);
}
}
Steps to run above program via command line :
- Compilation : C:\JavaPrograms>javac SumOfDigits.java
- Interpretation : C:\JavaPrograms>java SumOfDigits 12345
Output : Sum of digits: 15
Method 2 : Java Program to find Sum of Digits if input is taken using Scanner class
import java.util.Scanner;
public class SumOfDigits {
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
int n;
int a=0;
System.out.print("Enter a positive number: ");
n = in.nextInt();
if (n <= 0)
System.out.println("You have entered a negative number.");
else {
int sum = 0;
while (n != 0) {
a=n%10;
n=n/10;
sum=sum+a;
}
System.out.println("Sum of digits: " + sum);
}
}
}
Steps to run above program via command line :
- Compilation : C:\JavaPrograms>javac SumOfDigits.java
- Interpretation : C:\JavaPrograms>java SumOfDigits 12345
Output :
Trial 1 : With positive number
Enter a positive number: 12345
Sum of digits: 15
Trial 2 : With negative number
Enter a positive number: -12345
You have entered a negative number.
Tags: Aatul Palandurkar, Atul Palandurkar, Best Corporate Trainer for Java, Best Java Trainer in Pune, Best Java Training in Pune, Best Java Tutorials, Best Trainer for Android, Example of Scanner Class, Free Java Codes, Free Java Source Code, Free Java Tutorials, HP assignments, HP Internship Assignments, HP Summer Internship Assignments, HP Winter Internship Assignments, HPES assignments, HPES Internship Assignments, HPES Summer Internship Assignments, java code example, Java Prgram for Command Line, java program, Java program for Command Line Argument, Java Program for Scanner class, Java Program for Sum of Digits using Command Line, Java Program for Sum of Digits using Command Line Argument, Java Program for Sum of Digits using Scanner, Java Program for Sum of Digits using Scanner class, Java Program to find Sum of Digits, Java Programming, Java Trainer, Java Training, Java Training in Pune, program to compute sum of digits in java, Program to find Sum of Digits in Java, Sum of Digits in Java, write a program to compute sum of digits of a given number in java
