Java Tutorial | Learn Java programming

Java is a widely used robust technology. According to Estimates , 3 billion devices run java.



This Java Tutorial course is aimed at complete beginners to the subject. For those who have no programming experience or those who have limited knowledge of Java. We get you up and running and will give you the skills you need to master the Java programming language.



00:00:01 1 - Introduction and Installing the java (JDK) Step by Step Tutorial

00:13:03 2 - Installing Eclipse IDE and Setting up Eclipse

00:28:01 3 - Creating First Java Project in Eclipse IDE

00:47:34 4 - Variables and Types in Java

00:57:26 5 - Getting User Input using Java

01:09:31 6 - Math and Arithmetic Operators in Java

01:18:13 7 - Increment Operator and Assignment Operator

01:25:18 8 - IF ... ELSE Statements and Relational Operators

01:33:48 9 - Logical Operators in Java

01:41:11 10 - switch Statement in Java

01:50:44 11 - The while Statements (while Loops)

01:57:22 12 - The do-while Statements (do-while Loops)

02:03:15 13 - Arrays in Java

02:11:49 14 - The for Statement in Java (for loops)

02:20:20 15 - Java String

02:29:08 16 - Introduction to Methods

02:37:07 17 - Parameter passing and Returning a Value from a Method

02:49:41 18 - Classes and Objects in Java

03:05:02 19 - Class Constructor in Java

03:15:18 20 - Method Overloading in Java

03:20:40 21 - 'static' keyword in Java

03:28:15 22 - 'static' keyword Example in Java

03:34:58 23 - Public, Private, Protected and this (Java Access Modifiers)

03:47:14 24 - The final keyword in Java

03:57:42 25 - Inheritance in Java

04:07:51 26 - Polymorphism in Java

04:16:21 27 - Method Overriding in Java

04:22:35 28 - Abstract Methods and Classes

04:31:47 29 - Java Interfaces

04:39:06 30 - Recursion in java

04:45:54 31 - Arraylist in Java

04:56:42 32 - LinkedList in Java

05:04:36 33 - Difference between LinkedList vs ArrayList in Java

05:16:53 34 - ListIterator in Java

05:24:28 35 - HashSet in Java

05:32:39 36 - Catching and Handling Exceptions in Java using Try Catch Blocks

05:42:58 37 - Java Finally block (try-catch-finally Exception Handling in Java )

05:53:01 38 - Create a File and Write in it Using PrintWriter and File class

06:01:34 39 - How to Read file using Java

06:09:43 40 - Using Date & Time + formatting Date using SimpleDateFormat

How to Install Netbeans IDE on Mac OS X

How to Install Netbeans IDE on Mac OS X

How to Install Eclipse on Mac OS X

Shell Scripting Tutorial for Beginners 20 - FOR loop to execute commands

#!/bin/bash
# for loops

echo "all the files in directory--------"
for item in *
do  
   if [ -f $item ]
   then 
     echo $item
   fi
done

echo
echo "all the directory in directory--------"
for item in *
do  
   if [ -d $item ]
   then 
     echo $item
   fi
done
echo
echo "execute list of commands--------"
for command in ls pwd date
do  
     echo "command name -> $command"
     $command
done

Shell Scripting Tutorial for Beginners 18 - FOR loop

Basic Syntax:

for VARIABLE in 1 2 3 4 5 .. N
do
 command1
 command2
 commandN
done
#OR-----------------------------------------------

for VARIABLE in file1 file2 file3
do
 command1 on $VARIABLE
 command2
 commandN
done
#OR-----------------------------------------------

for OUTPUT in $(Linux-Or-Unix-Command-Here)
do
 command1 on $OUTPUT
 command2 on $OUTPUT
 commandN
done
#OR-----------------------------------------------
for (( EXP1; EXP2; EXP3 ))
do
 command1
 command2
 command3
done

Example:

#!/bin/bash
# for loops
#Example 1 ------------------------
for i in 1 2 3 4 5
do
   echo $i
done

#Example 2 ------------------------
for i in {0..10}
do
   echo $i
done

#Example 3 ------------------------
for i in {0..10..2}
do
   echo $i
done

#Example 4 ------------------------
echo ${BASH_VERSION}
for (( i=0; i<5; i++ ))
do
   echo $i
done

How to Install PostgreSQL 9.6 & pgAdmin 4 on Windows 10

Shell Scripting Tutorial for Beginners 18 - UNTIL loop

#!/bin/bash
# until loops
n=1

# first way
echo "----until loops------first way-------------------"
until [ $n -gt 10 ]
do
    echo "$n"
    (( n++ ))
done


# second way
n=1
echo "----until loops------second way-------------------"
until (( $n > 10 ))  
do
    echo "$n"
    (( ++n ))
done

# third way
n=1
echo "----until loops------third way-------------------"
until [ $n -gt 10 ]
do
    echo "$n"
    n=$(( n+1 ))
done

output

test@test:~/Desktop$ ./hello.sh 
----until loops------first way-------------------
1
2
3
4
5
6
7
8
9
10
----until loops------second way-------------------
1
2
3
4
5
6
7
8
9
10
----until loops------third way-------------------
1
2
3
4
5
6
7
8
9
10
test@test:~/Desktop$ 

Shell Scripting Tutorial for Beginners 16 - using sleep and open termina...

#!/bin/bash
# while loops
n=1

while [ $n -le 3 ]
do
    echo "$n"
    (( n++ ))
    gnome-terminal &
done

Shell Scripting Tutorial for Beginners 15 - WHILE Loops

#!/bin/bash
# while loops
n=1

# first way
echo "----while loops------first way-------------------"
while [ $n -le 10 ]
do
    echo "$n"
    (( n++ ))
done


# second way
n=1
echo "----while loops------second way-------------------"
while (( $n <= 10 ))  
do
    echo "$n"
    (( ++n ))
done

# third way
n=1
echo "----while loops------third way-------------------"
while [ $n -le 10 ]
do
    echo "$n"
    n=$(( n+1 ))
done

output:

test@test:~/Desktop$ ./hello.sh 
----while loops------first way-------------------
1
2
3
4
5
6
7
8
9
10
----while loops------second way-------------------
1
2
3
4
5
6
7
8
9
10
----while loops------third way-------------------
1
2
3
4
5
6
7
8
9
10
test@test:~/Desktop$