learn basic java from basic

Learn basic java from basic,learn basic java from basic, learn java from basic, understand java program from basic, pass string to java program, pass number to java program, java basic dynamic program, accept number and print using java program, accept name and display message java dynamic program, java type casting programming example 

Hi friends in this blog post i am sharing with you java basics concepts this is day two tutorial .

You must know installation and how to run java program in my previous post . click here to know more

 in assignment one we are going to print simple hello word message 

in second program we are going to pass string parameter to java program and 

in third assignment we are going to pass number parameter .

to understand you must know the basic structure of java program 

 lets understand basic structure of java program 

java program start with class name java class as shown in following program

 we use class ClassName {   }

               

(remember class name always start with Capital letter below eg ) 
in class we use to write 

 public static void main(String args[])
   
main is a starting point of java program contains parameter as array of strings i have given name args you can use as s , p , a as you wish , value contain args is string value 
as first value find in args[0], you can pass n number of values to java program 

1)Java Program to print simple message

 Save as One.java

public class One{
     public static void main(String args[])
 {
     System.out.println("good one \n ");
        System.out.println("good Morning \n");
  }
}

open cmd 

javac One.java

java One 

2)Java Program to print simple message 

accept user name (string Value) as a parameter.

 Java program to accept username dynamically and display good morning massage to that name 

 Save as Two.java

public class Two{
public static void main(String args[])
  {
  System.out.println("good morning"+args[0]);
  }
}

javac Two.java
java Two Prakash
utoput : good morning Prakash 

3)Java Program to accept number as argument and print it 

Save as Three.java

class Three{
public static void main(String args[])
{
  int a;
  int add=0;
  a=Integer.parseInt(args[0]);
System.out.println("Number entered= \t"+(a));
                    }
}

javac Three.java
java Three 10
outoput : Number entered 10

java tutorial w3schools, java tutorial for beginners ,java tutorial for beginners pdf ,advanced java tutorial java tutorial point ,java tutorial videos, java basics interview questions ,java basics concepts ,java tutorial w3schools, java tutorial for beginners, java tutorial for beginners pdf, advanced java tutorial java tutorial point, java tutorial videos ,java basics interview questions,Learn basic java from basic,learn basic java from basic, learn java from basic, understand java program from basic, pass string to java program, pass number to java program, java basic dynamic program, accept number and print using java program, accept name and display message java dynamic program, java type casting programming example