One of the main object oriented programming language is Java developed by Sun microsystem in 1995. It is secured and general purpose language. It is mostly used for to develop mobile applications, desktop applications, and game etc. java works in different platform like Mac, Linux, Windows, Raspberry pi etc.
Platform:: Java has the runtime environment and API. The latest version of java is SE 8. Four platforms or editions are available. That is
Java SE: One of the java programming platforms is java standard edition. It consists of more APIs such as java.net, java.io, java.util, java.math etc. topics like OOPs, Regex, AWT, string ec.
Java EE: It is fully based on enterprise edition mostly used for web based applications. It consists of concept like JSP, servlet, web services etc.
Java ME: It is fully based on micro platform mostly used for mobile phone applications.
JavaFX: JavaFX fully based on rich internet applications.
✔Java is designed to run on any computer platform.
✔Java Virtual Machine enables cross-platform use.
✔Java applets are downloaded to computers through networks.
Weaknesses of Java Programming:✔The security risk in downloading applets.
✔The speed in running the programs.
While giving help to Java programming assignment help in, specialists face numerous inquiries related with Java programming homework help and some of them are- Significant and Requisite Sub-themes of Java Homework Assignment Help. There are many sub-points which are taken care of by the specialists giving java basic concepts, some of them are referenced below
Generate a list of 1,000 random integer keys ranging from 0 to 99,999
in java which allows duplicatekeys.
import java.util.Arrays;
import java.util.Random;
import java.util.ArrayList;
import java.util.Collections;
import java.util.concurrent.ThreadLocalRandom;
class RandomList
{
public static void main(String args[])
{
Random rand = new Random();
long num;
ArrayList<Long> list = new ArrayList< Long >();
for (int i=0; i<1000; i++) {
num=ThreadLocalRandom.current().nextLong(0,100000);
list.add(new Long(num));
}
for(Long d:list) {
System.out.print(d+" ");
}
System.out.println("\n\n");
}
}
Java is a high-level programming language which is commonly used nowadays. A language was developed by Sun Microsoft and before the sun Microsoft there was a small engineers team known as Green team who start implementing the language in 1991 and gave name OAK to JAVA, later Sun Microsoft change the name to JAVA by modify the language to take the advantage of WWW. This is all about the emergence of C programming language because JAVA is derived from C programming language. Like in C, variables declared before they are used and code block modularized into methods that determine by curly braces. So, the syntax and rule same supported in JAVA. But Java still has its own structure, modified syntax rule and programming paradigms that based on OOPs. Code written in java start with the package which is a name mechanism and consist hierarchy of within packages are classes, then within class are methods, variables, constants, and more.
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Question 1
Write a complete Java program that prompts the user to input two integer values and outputs the
largest and smallest numbers. The program includes JOptionPane for both the input and output statements.
Question 2
2.1 Write a program called SumSquares that includes an integer return type method called Squares(). The method accepts two integer parameters (num1 and num2) and calculates the sum of these two squares (num12 + num22). The main method includes the method call, passing the following values (2, 3) to the Squares() method and the output displaying the sum of the squares in the command line window. (10 marks)
2.2 Write a Java program called Pattern that prints an 8-by-8 checker box pattern using a For loop structure as follows: (10 marks)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
Question 3:
Write a Java program called Decision that includes a while loop to prompt the user to enter 5 marks using the JOptionPane statement and a System. out a statement to output a message inside the loop highlighting a pass mark >= 50 and <= 100. Any other mark will output a messaging stating it’s a fail.
An example of the expected output is as follows:
55 is a pass 12 is a fail
import javax.swing.JOptionPane;
public class Q1{
public static void main(String[] args){
String a = JOptionPane.showInputDialog("first integer");
String b = JOptionPane.showInputDialog("second integer");
int m= Integer.parseInt(a);
int n= Integer.parseInt(b);
if(m>n)
JOptionPane.showMessageDialog(null,"largest number:"+m+"\nsmallest number:"+n);
else if(n>m)
JOptionPane.showMessageDialog(null,"largest number:"+n+"\nsmallest number:"+m);
else
JOptionPane.showMessageDialog(null,"both are equal");
}
}
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