benhallouk / Java-Exp

Java-Exp

Java

This is guide to help newbies to get started with java

To get started you will need JRE (Java RunTime), and JDK (Java Development Kit), and IDE of your choice

How to compile java and run

To compile java just run the command as shown bellow:

    javac YourFileName.java

To run your program just using the following command:

    java YourFileName

Exercie

Write a simple program that shows prime number from a given list

something like that

  private static int[] numbers = new int[5];

  //in the main method
    numbers[0] = 1;
    numbers[1] = 2;
    numbers[2] = 3;
    numbers[3] = 4;
    numbers[4] = 5;

// you make a loop
    for(...){
        if(number[index] ??? ){
            System.out.println("The number "+numbers[index]+" is a prime");
        }
    }

float

float myNumber=13f/2f;