Coding essentials and Java Input
Submitted by moazkhan on Wednesday, February 11, 2015 - 07:50.
Coding essentials and Java Input
In this tutorial you will learn: 1. Some coding essentials 2. Taking input in java console 3. Basic JAVA console program on conditional statements I have setting up the IDE now it’s time to start coding. The learning curve will be a little steep as we have much to cover. Some Coding Essentials This perhaps one of the most important things while programming in any language. There are a few main practices that every programmer must follow: 1. Indentation: To make your code more understandable indentation is a must. Try to balance the braces and statements. Try to use tab spaces and new lines as much as possible. You have a lot of free space so try your best to make your program neat. For example- If(statement){
- }
- Else{
- }
- }
- // single line comments
- /* If(){
- }
- Else{ }
- */
Basic Java console program:
• Open Eclipse > Workspace
• File > new > java project
• File > new > class
Write the following program
- import java.util.Scanner;
- public class Input {
- int num;
- char choice;
- float decimal;
- String name;
- num = inputScanner.nextInt(); //integer input
- choice = inputScanner.next().charAt(0); //character input
- decimal = inputScanner.nextFloat(); //float input
- name = inputScanner.next(); //string input
- //simply priting values
- }//end main
- }//end class
nextInt()
for integer, next().charAt(0)
for characters, next()
for strings. Then we are simply displaying these values to check whether the variables got the required input or not.
