<ol>
<li>What is JIT compiler ?
<ol>
<li>So java source code (.java) file is converted to a byte code (.class) file with the help of javac compiler
</li>
<li>Then jvm will convert this byte code into machine understandble code
</li>
<li>When JIT is enabled -&gt; jvm analyze the method calls in .class files and compiles them to get more efficient and native code -&gt; it ensures prioritized method calls are optimized.
</li>
<li>JVM will execute the optimized code directly instead of interpreting the code again -&gt; and hence increasing the performance and speed of the execution.
</li>
</ol>
</li>
</ol>

1. What is JIT compiler ?
    
    1. So java source code (.java) file is converted to a byte code (.class) file with the help of javac compiler
        
    2. Then jvm will convert this byte code into machine understandble code
        
    3. When JIT is enabled -&gt; jvm analyze the method calls in .class files and compiles them to get more efficient and native code -&gt; it ensures prioritized method calls are optimized.
        
    4. JVM will execute the optimized code directly instead of interpreting the code again -&gt; and hence increasing the performance and speed of the execution.