Java Full Course for free
Bro Code
Java is one of the top three most popular programming languages worldwide. It 's used extensively by
business enterprises android apps games and if you learn java you could land a job as a java developer.
Entry-level java developers have an average starting salary of 70 000 that's nothing to sneeze at so why
not learn java. A jdk is an acronym for java development kit it contains developers tools to help us code
as well as a jre a java runtime environment which contains a library toolkits and our jvm which translates
by code for us to machine code. All you need to worry about is downloading a jdk and everything else
will be included. We need a unique name for this java project i will call this my first program and i will
want to configure the jre the java runtime environment and we downloaded that with the jdk. When we
compile this source code to bytecode we 're going to create a new file that has the dot class file
extension and with that bytecode file we can run that and translate it using a jvm a java virtual machine.
This is our class mine is called main anything within the outer set of curly braces belongs to the class and
is contained within and within our class we have what is called a main method our program wo n't run
without this method because when we run our code we begin by calling the main method so if we were
to compile and run this code you can do so by clicking the screenplay button. When i compile and run
this pay attention the output is one long line of text. After printing the first statement our cursor does
not move down to the next line in order to do so we could use a print ln statement short for print line it
's as if we're hitting enter when we finish outputting our text. An alternative to using a print line
statement is that we could stick with the standard print statement and at the end of our text add an
escape sequence for a new character. Anything preceding with a backslash is the beginning of an escape
sequence and there 's one of a multitude of characters that could follow afterwards and depending on
the character this has special meaning for your compiler to do something specific now anything that is
following two forward slashes is beginning of a single line comment i could write this is a comment and
this line of text is going to be ignored by the compiler.
A shortcut would be to type system dot out then hold control space and your ide will auto generate the
rest of this print line statement for you. A trick on zooming in or out is how to change the font color as
well as the background color of your console window so with spaces spaces do n't make much of a
difference within your code. A variable is a placeholder for a value and it behaves as the value that it
contains. If we're going to store a value within a variable we have to list the data type of what we 're
planning to store within that variable is it going to be a number a word a boolean so we need to discuss
data types. A float data type can store a fractional number up to six to seven digits. A double has more
precision it uses eight bytes of memory and it can store up to 15 digits. In comparison with a float this
Bro Code
Java is one of the top three most popular programming languages worldwide. It 's used extensively by
business enterprises android apps games and if you learn java you could land a job as a java developer.
Entry-level java developers have an average starting salary of 70 000 that's nothing to sneeze at so why
not learn java. A jdk is an acronym for java development kit it contains developers tools to help us code
as well as a jre a java runtime environment which contains a library toolkits and our jvm which translates
by code for us to machine code. All you need to worry about is downloading a jdk and everything else
will be included. We need a unique name for this java project i will call this my first program and i will
want to configure the jre the java runtime environment and we downloaded that with the jdk. When we
compile this source code to bytecode we 're going to create a new file that has the dot class file
extension and with that bytecode file we can run that and translate it using a jvm a java virtual machine.
This is our class mine is called main anything within the outer set of curly braces belongs to the class and
is contained within and within our class we have what is called a main method our program wo n't run
without this method because when we run our code we begin by calling the main method so if we were
to compile and run this code you can do so by clicking the screenplay button. When i compile and run
this pay attention the output is one long line of text. After printing the first statement our cursor does
not move down to the next line in order to do so we could use a print ln statement short for print line it
's as if we're hitting enter when we finish outputting our text. An alternative to using a print line
statement is that we could stick with the standard print statement and at the end of our text add an
escape sequence for a new character. Anything preceding with a backslash is the beginning of an escape
sequence and there 's one of a multitude of characters that could follow afterwards and depending on
the character this has special meaning for your compiler to do something specific now anything that is
following two forward slashes is beginning of a single line comment i could write this is a comment and
this line of text is going to be ignored by the compiler.
A shortcut would be to type system dot out then hold control space and your ide will auto generate the
rest of this print line statement for you. A trick on zooming in or out is how to change the font color as
well as the background color of your console window so with spaces spaces do n't make much of a
difference within your code. A variable is a placeholder for a value and it behaves as the value that it
contains. If we're going to store a value within a variable we have to list the data type of what we 're
planning to store within that variable is it going to be a number a word a boolean so we need to discuss
data types. A float data type can store a fractional number up to six to seven digits. A double has more
precision it uses eight bytes of memory and it can store up to 15 digits. In comparison with a float this
