Logical Programs in Java | Step-By-Step Process

Last updated on 08th Dec 2021, Blog, General

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Java is an object-oriented programming language. It is a general-purpose programming language, mainly designed to run developed java code on all platforms that support Java without recompilation.

• Introduction
• Why Use Java
• Execution of A Java Program
• Straightforward Hello World Program
• Elements of JVM
• Stage autonomy
• Fibonacci Series
• Indivisible Number
• Armstrong Number
• Turn around a String/Palindrome String
• Switch a Number/Palindrome Number
• Conclusion

Introduction:

Java is a famous programming language, made in 1995.

• It is claimed by Oracle, and multiple billion gadgets run Java.

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• It is utilized for:
• Versatile applications (extraordinarily Android applications)
• Work area applications
• Web applications
• Web servers and application servers
• Games
• Information base association
• What’s more, a whole lot more!

Why Use Java:

Java deals with various stages (Windows, Mac, Linux, Raspberry Pi, and so forth)

• It is one of the most famous programming language on the planet
• It is not difficult to learn and easy to utilize
• It is open-source and free
• It is secure, quick and incredible
• It has an enormous local area support (a huge number of engineers)
• Java is an item situated language which gives a reasonable design to programs and permits code to be reused, bringing down advancement costs As Java is near C++ and C#, it makes it simple for developers to change to Java or the other way around.

Execution of A Java Program:

Static stacking : A square of code would be stacked into the RAM before it executed ( i.e subsequent to being stacked into the RAM it could possibly get executed )

• Dynamic stacking : A square of code would be stacked into the RAM just when it is needed to be executed.
• Note : Static stacking occurred in the execution of organized programming dialects. EX: c-language
• Java follows the Dynamic stacking
• JVM would not change over every one of the assertions of the class document into its executable code at a time.
• When the control comes out from the strategy, then, at that point, it is erased from the RAM and one more technique for exe type will be stacked as required.
• When the control comes out from the fundamental ( ), the principle ( ) technique would likewise be erased from the RAM. Therefore we can’t see the exe substance of a class record.

Straightforward Hello World Program

Out of 500+ Simple and Basic Java Programs: Hello world is a very first program which we distributed on our site. Obviously, Every Java developer or C software engineer will begin with a “Hi World Program”. Followed by the remainder of the projects in various Categories.

• class HelloWorld
• {
• public static void main(String args[])
• {
• System.out.println(“Hello World”);
• }
• }

Elements of JVM :

It changes over the necessary piece of the bytecode into its identical executable code.

• It stacks the executable code into the RAM.
• Executes this code through the neighborhood working framework.
• Erases the executable code from the RAM.
• We realize that JVM changes over the class record into its comparable executable code. Presently assuming a JVM is in windows climate executable code that is perceived by windows climate as it were.
• Additionally, same for the situation with UNIX or other or along these lines JVM IS stage subordinate.
• With the assistance of this course, understudies would now be able to get a partner to compose a fundamental program to inside and out calculations in C Programming or Java Programming to comprehend the essentials one should visit the rundown 500 Java projects to get a thought.
• Clients would now be able to download the best 100 Basic Java programming models in a pdf arrangement to rehearse.
• Yet, the stage reliance of the JVM isn’t thought of while saying Java is stage autonomous on the grounds that JVM is provided liberated from cost through the web by the sun microsystems.

Stage autonomy :

Arranged code of a program ought to be executed in any working framework, regardless of the OS where that code had been produced. This idea is known as stage freedom.

• The introduction of the uh oh idea occurred with exemplification.
• Any program contains two sections.
• Date part and Logic part
• Out of information and rationale the most noteworthy need we have given to information.
• Yet, in an organized programming language, the information weakness is high.
• Along these lines in an interaction, if getting information in organized prog. lang. the idea of exemplification appeared.

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Fibonacci Series :

The Fibonacci series is perhaps the most renowned numerical formula. In the Fibonacci series, each number is an amount of two going before numbers.

We should consider a model here :

• 0,1,1,2,3,5,8,13,21,34,55, etc the succession proceeds.
• import java.util.Scanner;
• public class Fibonacci {
• static void show fibonacci(int no){
• int f1, f2=0, f3=1;
• for(int i=1;i 0){
• show fibonacci(n);
• }else{
• System.out.println(“Please enter positive number”);
• }
• }
• }
• Yield:
• Enter Number: 10
• 1
• 1
• 2
• 3
• 5
• 8
• 13
• 21
• 34
• 55

Indivisible Number :

The indivisible number in Java : indivisible numbers are a sort of numbers in java which is equivalent to one or more prominent than 1. A number is considered as an excellent when it is partitioned by 1 or itself. For e.g 2, 3, 5, 7, 11, 13, 17 and so on.

import java.util.Scanner;

public class PrimeNum{

public static void main(String[] args){

Scanner s = new Scanner(System.in);

System.out.println(“Enter a number : “);

int num = s.nextInt();

int i=2;

for(; i for(; i<10; i++){

if(num%i==0 && num!=i){

System.out.println(num+” is anything but a prime number.”);

break;

}

}

if(i==10){

System.out.println(num+” is a prime number.”);

}

}

}

Yield:

Enter a number : 17

17 is an indivisible number.

Armstrong Number:

import java.util.Scanner;

• public class ArmstrongNumber{
• public static void main(String[] args){
• Scanner s = new Scanner(System.in);
• System.out.println(“Enter a number: “);
• int num = s.nextInt();
• int a = num, r=0, result=0;
• while(a!=0){
• r = a%10;
• a = a/10;
• result = result + r*r*r;
• }
• if(result==num){
• System.out.println(num+” is an armstrong number.”);
• }
• else{
• System.out.println(num+” isn’t an armstrong number.”);
• }
• }
• }
• Yield:
• Enter a number: 407
• 407 is an armstrong number.

Amazing Number :

An ideal number is a positive number that is equivalent to the amount of its appropriate positive divisors.

Ex. 6 = (1 + 2 + 3) or It is a programming technique in java to check whether or not a given number is awesome. An ideal number is a positive whole number which is equivalent to the amount of its positive divisors with the exception of the actual number.

Factorial

import java.util.Scanner;

• public class Factorial {
• public static void main(String[] args){
• Scanner in = new Scanner(System.in);
• System.out.println(“Enter the number: “);
• int num = in.nextInt();
• int truth =1;
• for(int i=num; i>0; I- – ){
• truth = fact*i;
• }
• System.out.println(“Factorial of “+num+” is “+fact);
• }
• }
• Yield :
• Enter the number : 7
• Factorial of 7 is 5040

Turn around a String/Palindrome String

It is a programming strategy in java to check whether or not a string is a palindrome. A string is announced as a palindrome assuming it is unaltered in any event, when you switch it. For instance ‘father’ is a palindrome string since it will stay unaltered when you compose it conversely. With regards to our programming part, at whatever point a client input a string, it will naturally be switched, and it will be contrasted with the information string.

• import java.util.Scanner;
• public class Palindrome{
• public static void main(String[] args){
• Scanner s = new Scanner(System.in);
• System.out.println(“Enter the string: “);
• String str = s.next();
• String result = “”;
• for(int i=str.length()- 1; i>=0; I- – ){
• result = result+str.charAt(i);
• }
• System.out.println(“Reverse of “+str+” is “+result);
• if(result.equals(str)){
• System.out.println(str+” is palindrome.”);
• }
• else{
• System.out.println(str+” isn’t palindrome.”);
• }
• }
• }
• Yield :
• Enter the string : Java
• Converse of Java is avaJ
• Java isn’t a palindrome.

Switch a Number/Palindrome Number :

A palindrome number is a number where the number is unaltered regardless of whether you turn around it. How about we consider a model here : ‘12321’ is considered as a palindrome number since it will be a similar number regardless of whether you compose it conversely.

• import java.util.Scanner;
• public class PalindromeNum {
• static int check palindrome(int num){
• int newN = 0, rem, temp;
• temp = num;
• //track down amount of all digits of the numbe
• while(temp != 0){
• rem = temp % 10;
• newN = newN*10 + rem;
• temp = temp/10;
• }
• //Check if amount of all digits of the number
• //is equivalent to the given number or not.
• if(newNum){
• System.out.println(num +” is palindrome.”);
• }else{
• System.out.println(num +” isn’t palindrome.”);
• }
• return newN;
• }
• public static void main(String args[]){
• Scanner s = new Scanner(System.in);
• System.out.println(“Enter the Number: “);
• int no = s.nextInt();
• int and = check palindrome(no);
• System.out.println(“Reverse of a number :” +n);
• }
• }
• Yield :
• Enter the Number : 214412
• 214412 is a palindrome.
• Opposite of a number : 214412

Program to perform typical arithmetic activity in JAVA :

• public class Math Operation {
• public static void main(String[] args) {
• math Operation = new Math Operation();
• math Operation.sumTotal();
• math Operation.multi();
• math Operation.division();
• math Operation.difference();
• }
• public void sumTotal(){
• int a = 80;
• int b = 50;
• int total = a + b;
• System.out.println(“Sum is”+ total);
• }
• public void multi(){
• int a = 80;
• int b = 50;
• int mul = a * b;
• System.out.println(“multiplication” + mul);
• }
• public void difference(){
• int a = 80;
• int b = 50;
• int min = a – b;
• int div = a/b;
• System.out.println(“Difference” + min);
• }
• public void division(){
• int a = 80;
• int b = 50;
• int div = a/b;
• System.out.println(“Division” + div);
• }
• }

In the event that else condition in JAVA :

• public class IfElseConcept {
• public static void main(String[] args) {
• int a = 100;
• int b = 20;
• if(b>a) {
• System.out.println(“b is more prominent than a”);
• }else {
• System.out.println(“a is more prominent than b”);
• }
• //Examination Operators
• // < > = == !=
• int c = 40;
• int d = 40;
• if(c==d) {
• System.out.println(“C and D are Equal”);
• }else {
• System.out.println(“C and D are not equivalent”);
• }
• //WAP to discover the largest number
• int a1 = 10000;
• int b1 = 2000;
• int c1 = 300;
• //Settled If-Else
• if(a1>b1 and a1 > c1) {//bogus and bogus = bogus
• System.out.println(“a1 is more noteworthy”);
• }else if(b1>c1) {
• System.out.println(“b1 is more noteworthy”);
• }else {
• System.out.println(“c1 Is more noteworthy”);
• }
• }
• }

Conclusion :

This project assists developers in developing real-world projects in order to sharpen their talents and turn theoretical knowledge into practical experience. Java has major advantages as both a commercial and a teaching language. The Java project has rigorous compile-time error checking, which is generally associated with Pascal. This allows educators to introduce students to GUI programming, networking, threads, and other fundamental ideas utilised in modern software. Overall, the java project provides an all-inclusive design for the extended language.