update

Author: ashmeet07

core-java/java-basics/index.md

@@ -12,6 +12,7 @@ Java is class-based, **object-oriented** programming language developed by *Jame
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 ## History of Oak
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 Java implementation was begun in 1991 by *James Gosling, Mike Sheridan, and Patrick Naughton* a team of engineers at Sun Microsystems known as the Green Team. The name was inspired by Java coffee and the first version released was Java 1.0.
 - *Arthur Van Hoff* rewrote the Java 1.0 compiler to strictly comply with its specifications.
@@ -26,6 +27,7 @@ Java implementation was begun in 1991 by *James Gosling, Mike Sheridan, and Patr
 - At that time Java made itself a preferred language for various applications including, Internet programming, Gaming & e-business etc.
 
 ## Features of Java
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 - Java is known for its simplicity, robustness and security features making it a popular choice for enterprise-level applications.
@@ -41,6 +43,7 @@ Java implementation was begun in 1991 by *James Gosling, Mike Sheridan, and Patr
 - It helps to create modular programming by providing modularity like: abstract classes, interfaces, inheritance etc.
 
 ## Key Features of Java
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 1. **Platform Independent**:  
@@ -83,6 +86,8 @@ Java implementation was begun in 1991 by *James Gosling, Mike Sheridan, and Patr
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 # How we can create our first Java program
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 - Creating file name it use (**.java**) extension in any IDE(**Integrated Development Environment**) IntelliJ IDEA, Eclipse, or NetBeans.
 - Compiling the file/program with (java compiler **javac**) convert the source code -> bytecode(**.class**) file which can be execute on any os having JVM.
 - Running the program using (**java**) tool the JVM execute the compiled bytecode into machine level code using JIT and MC executed by the CPU.
@@ -109,6 +114,7 @@ Java implementation was begun in 1991 by *James Gosling, Mike Sheridan, and Patr
 
 
 ## Basic Terminologies in Java:-
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 #### **JVM** (*Java Virtual Machine*)
@@ -132,18 +138,19 @@ It is intermediate code generated by JVM and it is platform independent.
 
 The name itself suggests that it is the kit which includes each tool used to run Java on your machine like:
 
-| **Tool**     | **Description**                                   |
-|--------------|----------------------------------------------------|
-| `javac`      | Java compiler                                      |
-| `JRE`        | Java Runtime Environment                           |
-| `jdb`        | Java Debugger                                      |
-| `javadoc`    | Java Documentation Generator                       |
-| `jar`        | Java Archive Tool                                  |
-| `jshell`     | Interactive Java shell (since Java 9)             |
-| `javap`      | Class file disassembler                            |
-| `jdeps`      | Dependency analyzer                                |
-| `jlink`      | Custom runtime image builder                       |
-| `jmod`       | Java Module tool                                   |
-| `jconsole`   | Java Monitoring and Management Console             |
+| **Tool**     |    **Description**                                     |
+|:------------:|:------------------------------------------------------:|
+| `javac`      |    Java compiler                                       |
+| `JRE`        |    Java Runtime Environment                            |
+| `jdb`        |    Java Debugger                                       |
+| `javadoc`    |    Java Documentation Generator                        |
+| `jar`        |    Java Archive Tool                                   |
+| `jshell`     |    Interactive Java shell (since Java 9)               |
+| `javap`      |    Class file disassembler                             |
+| `jdeps`      |    Dependency analyzer                                 |
+| `jlink`      |    Custom runtime image builder                        |
+| `jmod`       |    Java Module tool                                    |
+| `jconsole`   |    Java Monitoring Console                             |
 
+<br/>
 So, **JDK is the toolbox, not just the hammer**.