Java Programs
How to create Method Overriding program in java
Here is a Program on How to create Method Overriding program in java with Step by Step explaination. class Bank { …
How to create Multidimensional array program in Java
class Multi_Array { public static void main(String args[]) { …
How to create Array program in java
class Array_TechSarvam { public static void main(String args[]) { …
How to create Hashtable program in java
import java.util.*; class Hashtable_TechSarvam { public static void main(String args[]) { …
How to create TreeMap program in java
import java.util.*; class TreeMap_TechSarvam { public static void main(String args[]) { …
How to create LinkedHashMap program in java
import java.util.*; class LinkedHashMap_TechSarvam { public static void main(String args[]) { …
How to create HashMap using map interface program in java
import java.util.*; class MapInterfaceExample { public static void main(String args[]) { …
How to create PriorityQueue program in java
import java.util.*; class PriorityQueue_TechSarvam { public static void main(String args[]) { …
How to create TreeSet program in java
import java.util.*; class TreeSet_TechSarvam { public static void main(String args[]) { …
How to create LinkedHashSet program in java
import java.util.*; class LinkedHashSet_TechSarvam { public static void main(String args[]) { …
How to create Hashset program in java
import java.util.*; class TestCollection9 { public static void main(String args[]) { …
How to ArrayList using list interface program in java
import java.util.*; class Book { int id; String name, author, publisher; int…
How to create LinkedList program in java
import java.util.*; public class LinkedList_TechSarvam { public static void main(String args[]) { LinkedList<String> al = new LinkedList<String>(); // Create…
Create ArrayList program in java
import java.util.*; class Arrylist_TechSarvam { public static void main(String args[]) { …
How to convert string to date in java program
import java.text.SimpleDateFormat; import java.util.Date; public class StringToDateExample1 { public static void main(String[] args) throws Exception …
How to convert string to double in java program
public class StringToFloatExample { public static void main(String args[]) { …
How to convert string to float in java
public class StringToFloatExample { public static void main(String args[]) { …
How to convert string to long in java
public class StringToLongExample { public static void main(String args[]) { …
How to convert integer to string in java program
public class IntToStringExample1 { public static void main(String args[]) { …
How to convert string to integer in java program
public class StringToIntExample { public static void main(String args[]) { …
How to create Swing program in java
import javax.swing.*; public class FirstSwingExample { public static void main(String[] args) { …
How to dropdown in AWT program in java
import java.awt.*; public class ChoiceExample { ChoiceExample() { Frame…
How to add text area program in java
import java.awt.*; public class TextAreaExample { TextAreaExample() { Frame…
How to add label in AWT program in java
import java.awt.*; class LabelExample { public static void main(String args[]) { …
How to create AWT program in java
import java.awt.*; class First extends Frame { First() { …
How to get IP address from site URL using java program
import java.io.*; import java.net.*; public class InetDemo { public static void main(String[] args) { try { …
How to get URL of site using java Programs
import java.io.*; import java.net.*; public class URLDemo { public static void main(String[] args) { try { …
How to read data from text file using java program
import java.io.FileInputStream; public class DataStreamExample { public static void main(String args[]) { try { …
How to write data in text file using java program
import java.io.FileOutputStream; public class FileOutputStreamExample { public static void main(String args[]) { …
How to join thread in java program
class TestJoinMethod1 extends Thread { public void run() { …
How to create Multithreading program in java
class Multi extends Thread { public void run() { …
How to check Regular expression in java Program
import java.util.regex.*; public class RegexExample1 { public static void main(String args[]) { …
How to execute Procedure in JDBC in java Program
import java.sql.*; public class Proc { public static void main(String[] args) { Connection con = null; …
How to execute Procedure in JDBC in java Program
import java.sql.*; public class Proc { public static void main(String[] args) { …
How to insert image using JDBC in java Program
import java.sql.*; import java.io.*; public class InsertImage { public static void main(String[] args) { …
How to insert data in table using JDBC in java Program
import java.sql.*; class InsertPrepared { public static void main(String args[]) { …
How to connect Database using java Program
import java.sql.*; class OracleCon { public static void main(String args[]) { try { …
Bubble sort Program in java
import java.util.Scanner; class BubbleSort { public static void main(String[] args) { int n, c, d, swap; …
Binary search Program in java
import java.util.Scanner; class BinarySearch { public static void main(String args[]) { int c, first, last, middle, n,…
How to multiply two matrix in java Program
import java.util.Scanner; class MatrixMultiplication { public static void main(String args[]) { int m, n, p, q, sum…
How to create Multiple class in java Program
class Computer { Computer() { System.out.println(“Constructor of Computer…
Linear search Program in java
import java.util.Scanner; class LinearSearch { public static void main(String args[]) { …
How to open notepad in java Program
import java.util.*; import java.io.*; class Notepad { public static void main(String[] args) { Runtime rs = Runtime.getRuntime(); try { rs.exec(“notepad”); } catch (IOException e) { System.out.println(e); } } } Program Description: This…
How to get own IP Address in java Program
import java.net.InetAddress; class IPAddress { public static void main(String args[]) throws Exception { System.out.println(InetAddress.getLocalHost()); } } Program Explanation: This Java program illustrates how to get the local IP address…
How perform garbage collection in java Program
import java.util.*; class GarbageCollection { public static void main(String s[]) throws Exception { Runtime rs = Runtime.getRuntime(); System.out.println(“Free memory in JVM before Garbage Collection = “+rs.freeMemory()); rs.gc(); System.out.println(“Free…
How to Generate random number in java Program
import java.util.*; class RandomNumbers { public static void main(String[] args) { int c; Random…
How to Date format in java Program
import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class SimpleDateFormatExample2 { public static void main(String[] args) { Date date…
How to SQL Date in java Program
import java.sql.Date; public class StringToSQLDateExample { public static void main(String[] args) { String str = “2015-03-31”; …
How to print date and time in java Program
public class SQLDateExample { public static void main(String[] args) { …
How to create Interface in java Program
interface Info { static final String language = “Java”; public void display(); } class Simple implements Info { public…
Advantage of Finally in Exception Handling java Program
class Allocate { public static void main(String[] args) { try { long data[] = new long[1000000000]; } catch (Exception e) { System.out.println(e); } finally { System.out.println(“finally block will…
How to throw exception in java Program
public class TestThrow1 { static void validate(int age) { if (age < 18) …
Exception Handling java Program
import java.util.Scanner; class Division { public static void main(String[] args) { …
How to create constructor overloading in java Program
class Language { String name; // Constructor method Language() …
How to create constructor in java Program
class Programming { // Constructor method Programming() { System.out.println(“Constructor method called.”); } public…
How to create Multiple class in java Program
class Computer { Computer() { System.out.println(“Constructor of Computer class.”); } void computer_method() { …
Difference between Static and Instance method working in java Program
class Difference { public static void main(String[] args) { display(); // calling without object …
How Static block working in java Program
class StaticBlock { public static void main(String[] args) { …
Find Length, Concatenate and Replace String in Java Program
class StringMethods { public static void main(String args[]) { int n; String s…
How to create method in java Program
class Methods { // Constructor method Methods() { …
How to convert all char in string lower case in java Program
public class StringLowerExample { public static void main(String args[]) { String s1 = “TechSarvam by Rajendrasarvam…
Check Given No is palindrome or Not in java Program
import java.util.*; class Palindrome { public static void main(String args[]) { String original, reverse = “”; Scanner in = new Scanner(System.in); System.out.println(“Enter a string to check…
How to remove space in string both end in java Program
public class StringTrimExample { public static void main(String args[]) { String s1 = ” hello string “; …
How to split string in java Program
public class SplitExample { public static void main(String args[]) { String s1 = “java string split…
How to replace string with another string in java Program
public class ReplaceAllExample2 { public static void main(String args[]) { String s1 = “My name is…
How to use indesOf() in java Program
public class IndexOfExample { public static void main(String args[]) { …
How to string width with specific char in java Program
class StringEndwith { public static void main(String args[]) { String s1 = “java by TechSarvam”; …
How to compare 2 string in java Program
public class LastIndexOfExample { public static void main(String args[]) { String s1 = “hello”; …
How to get transpose of matrix in java Program
import java.util.Scanner; class TransposeAMatrix { public static void main(String args[]) { int m, n, c, d; …
How to multiply two matrix in java Program
import java.util.Scanner; class MatrixMultiplication { public static void main(String args[]) { int m, n, p, q, sum…
How to add two matrix in java Program
import java.util.Scanner; class AddTwoMatrix { public static void main(String args[]) { int m, n, c, d; …
Print reverse string in java Program
import java.util.*; class ReverseString { public static void main(String args[]) { String original, reverse = “”; Scanner in = new Scanner(System.in); System.out.println(“Enter a string to reverse”);…
Find All substring of string in java Program
import java.util.Scanner; class SubstringsOfAString { public static void main(String args[]) { String string, sub; int i, c, length; Scanner in = new Scanner(System.in); System.out.println(“Enter a string to print…
Print Floyd’s Triangle in java Program
import java.util.Scanner; class FloydTriangle { public static void main(String args[]) { int n, num = 1, c, d; Scanner in = new Scanner(System.in); System.out.println(“Enter the number of…
Check no is Armstrong or not in java Program
import java.util.Scanner; class ArmstrongNumber { public static void main(String args[]) { int n, sum = 0, temp, remainder, digits = 0; Scanner in =…
Print prime no Program in java
import java.util.*; class PrimeNumbers { public static void main(String args[]) { int n, status = 1, num = 3; Scanner in = new Scanner(System.in); System.out.println(“Enter the number…
Print Multiplication table Program in java
import java.util.Scanner; //For Any Number import java.util.Scanner; class Tables { public static void main(String args[]) { int a, b, c, d; System.out.println(“Enter range of numbers to print their…
Enhance loop in java Program
class EnhancedForLoop { public static void main(String[] args) { int primes[] = { 2, 3, 5, 7, 11, 13, 17, 19, 23,…
Print all alphabet using for loop Program in java
lass Alphabets { public static void main(String args[]) { char ch; for (ch…
While loop using break and continue Program in java
import java.util.Scanner; class BreakContinueWhileLoop { public static void main(String[] args) { int n; Scanner input = new Scanner(System.in); while (true) { System.out.println(“Input an integer”); n = input.nextInt(); if…
While loop using break Program in java
import java.util.Scanner; class BreakWhileLoop { public static void main(String[] args) { int n; Scanner…
Print Reverse number in java program
import java.util.Scanner; class ReverseNumber { public static void main(String args[]) { int n, reverse = 0; …
While loop Program in java
import java.util.Scanner; class WhileLoop { public static void main(String[] args) { int n; Scanner input = new Scanner(System.in); System.out.println(“Input an integer”); while ((n = input.nextInt())…
Print Star console using Loop
class Stars { public static void main(String[] args) { int row, numberOfStars; for…
How to complete 2 string in Java program
import java.util.Scanner; class CompareStrings { public static void main(String args[]) { String s1, s2; …
Find factorial for given no Program in Java
import java.util.Scanner; class Factorial { public static void main(String args[]) { int n, c, fact = 1; …
How to check Odd and Even Number in java
import java.util.Scanner; class OddOrEven { public static void main(String args[]) { int x; System.out.println(“Enter…
Nested If Else clause in java
java.util.Scanner; import class GradeAssignment { public static void main(String[] args) { int marksObtained; char…
Nested If Else clause in java
java.util.Scanner; import class GradeAssignment { public static void main(String[] args) { …
If Else clause in java- Program 2
// If else in Java code import java.util.Scanner; class IfElse { public static void main(String[] args) { int marksObtained, passingMarks; passingMarks = 40; Scanner input…
If Else clause in java
class Condition { public static void main(String[] args) { boolean learning = true; …
Find Largest no in java Program
import java.util.Scanner; class LargestOfThreeNumbers { public static void main(String args[]) { int x, y, z; …
How to add two numbers Program in java
import java.util.Scanner; class AddNumbers { public static void main(String args[]) { int x, y, z; …
How to swap 2 no without using 3rd variable Program in Java
Here is an explaination on How to swap 2 no without using 3rd variable Program in Java import java.util.Scanner; class SwapNumbers { public static…
How to swap 2 no using 3rd variable Program in java
Here is an explaination on How to swap 2 no using 3rd variable Program in java. import java.util.Scanner; class SwapNumbers { public static void…
How to convert Fahrenheit to Celsius Program in Java
Here is an explaination on How to convert Fahrenheit to Celsius Program in Java. import java.util.*; class FahrenheitToCelsius { public static void main(String[] args) { float…
How to get input using the Scanner Program in Java
Here is a program with explaination on How to get input using the Scanner Program in Java? import java.util.Scanner; class GetInputFromUser { public static…
Command Line Argument in Java
Command Line Argument in Java class Arguments { public static void main(String[] args) { for (String t: args) { …
Program to Print Integer in Java
class Integers { public static void main(String[] arguments) { int c; //declaring a…
Best Simple Java Program for Beginners
class HelloWorld { public static void main(String args[]) { …