Fix typos

Author: sudheerj

README.md

@@ -25,6 +25,7 @@ Frequently asked Java Interview questions
 | 16 | [What are the differences between arraylist and vector?](#what-are-the-differences-between-arraylist-and-vector) |
 | 17 | [What is finalize method? How do you override it?](#what-is-finalize-method-how-do-you-override-it) |
 | 18 | [What Is the Difference Between the Comparable and Comparator Interfaces](#what-is-the-difference-between-the-comparable-and-comparator-interfaces) |
+
 <!-- TOC_END -->
 
 <!-- QUESTIONS_START -->
@@ -57,7 +58,7 @@ Frequently asked Java Interview questions
 
 3. ### How does JVM works
 
-   JVM(Java Virtual Machine) is an abstract runtime engine to run java applications. It is part of Java Runtime Environment(JRE) to execute the bytecode generated by java compilers. JVM brings WORA(Write Once Read Anywhere) behavior in which you can write java program on one system and expected to run on any java enabled systems without any modifications. Upon compiling .java file to .class file(contains byte code), .class file goes into severl steps described by JVM.
+   JVM(Java Virtual Machine) is an abstract runtime engine to run java applications. It is part of Java Runtime Environment(JRE) to execute the bytecode generated by java compilers. JVM brings WORA(Write Once Read Anywhere) behavior in which you can write java program on one system and expected to run on any java enabled systems without any modifications. Upon compiling .java file to .class file(contains byte code), .class file goes into several steps described by JVM.
 
    JVM consists of three main components:
 
@@ -94,7 +95,7 @@ Frequently asked Java Interview questions
 
    1. **Bootstrap ClassLoader:** This is a root class loader and typically represented as null. It loads the core java libraries located in <JAVA_HOME>/jmods folder like `java.lang`, `java.util` etc. This class loader is written in native code unlike other class loaders.
 
-   2. **Platform ClassLoader:** This class loader is responsible for loading platform classes such as Java SE platform APIs, their implementation classes and JDK-specific run-time classes. For example, the platform classess such as `java.net.http`, `java.sql`, `org.graalvm.compile`(JDK Specific).
+   2. **Platform ClassLoader:** This class loader is responsible for loading platform classes such as Java SE platform APIs, their implementation classes and JDK-specific run-time classes. For example, the platform classes such as `java.net.http`, `java.sql`, `org.graalvm.compile`(JDK Specific).
 
    3. **System/Application classLoader:** This class loader is responsible for loading all the classes configured from the classpath. The classpath can contain classes from directories, JAR files etc.
 
@@ -150,7 +151,7 @@ Frequently asked Java Interview questions
       5. **Garbage Collector:** Garbage Collector(GC) is responsible to collect and remove unreferenced objects from the heap area. This memory management feature is used to reclaim the unused memory and makes free space for newer objects. This happens in two phases:
 
          1. **Mark:** In this step, GC identifies the unused objects in memory
-         2. **Sweep:** As part of this step, GC removes the objects indentified in the previous phase.
+         2. **Sweep:** As part of this step, GC removes the objects identified in the previous phase.
 
    4. **Java Native Interface (JNI) :** JNI is used as a bridge between java method calls and native libraries written in C, C++ etc. Sometimes it is required to invoke native code for specific underlined hardeware.
    5. **Native Method Libraries :** These are collection of native libraries(C/C++/Assembly) which are required by execution engine. These libraries loaded through JNI and represented in the form of `.dll` or `.so` files.
@@ -224,7 +225,7 @@ Frequently asked Java Interview questions
 
    5. String[] args: This is an array of strings which stores arguments passed by command line while starting a program.
 
-   **Note:** You can create any number of main methods through overloading features. i.e, Mulitple main methods can be created with different parameters.
+   **Note:** You can create any number of main methods through overloading features. i.e, Multiple main methods can be created with different parameters.
 
    **[⬆ Back to Top](#table-of-contents)**
 
@@ -333,7 +334,7 @@ Frequently asked Java Interview questions
         }
     ```
 
-    Whereas the exceptions which are not checked at compile time are known as unchecked excpetions. All the exceptions under Error and RuntimeException comes under unchecked exceptions.
+    Whereas the exceptions which are not checked at compile time are known as unchecked exceptions. All the exceptions under Error and RuntimeException comes under unchecked exceptions.
 
     Some of the common unchecked exceptions are,
 
@@ -376,7 +377,7 @@ Frequently asked Java Interview questions
     | boolean             | Boolean       |
     | char                | Char          |
 
-    You can use `.valueOf` methods from wrapper classes to convert primitive to object type, and the same way wrapper class methods like `intValue`, `doubeValue` etc used to convert wrapper class to primitive type. But this manual process can be automated.
+    You can use `.valueOf` methods from wrapper classes to convert primitive to object type, and the same way wrapper class methods like `intValue`, `doubleValue` etc used to convert wrapper class to primitive type. But this manual process can be automated.
 
     1. **autoboxing**
 
@@ -585,7 +586,7 @@ Frequently asked Java Interview questions
     class T implements Comparable<T> {
         @Override
         public int compareTo(T t) {
-            // comparasion logic goes here
+            // comparison logic goes here
         }
     }
     ```
@@ -638,6 +639,7 @@ Frequently asked Java Interview questions
         }
     }
     ```
+
     **Comparator:**
 
     The comparator is a functional interface used to sort objects and it provides **multiple sorting sequence** in which objects sorted based on multiple data members. This interface is available as part of `java.util` package.  For example, Employee object can be sorted based on multiple attributes like id, name, age etc.
@@ -650,7 +652,7 @@ Frequently asked Java Interview questions
      }
     ```
 
-    You can create multiple separate classes (which implement Comparator interface) to compare by different members.The Comparator provides the compare() method which can be overriden to customize the comparison logic. For example, group of employees sorted based on id and age data members even though Employee class overridden the compareTo method.
+    You can create multiple separate classes (which implement Comparator interface) to compare by different members.The Comparator provides the compare() method which can be overridden to customize the comparison logic. For example, group of employees sorted based on id and age data members even though Employee class overridden the compareTo method.
 
     ```java
     public static void sortById(List<Employee> employees) {
@@ -677,4 +679,8 @@ Frequently asked Java Interview questions
 
     **[⬆ Back to Top](#table-of-contents)**
 
+ 19. ### What Is an inner class
+
+     **[⬆ Back to Top](#table-of-contents)**
+
 <!-- QUESTIONS_END -->