Programmatically compiling the Java program using Compiler API

Sample code to programmatically compile a Java program.

   1. public class CompilerExample {  
   2.     public static void main(String[] args) {  
   3.         String fileToCompile = "c:" + java.io.File.separator  
   4.                 + "HelloWorld.java";  
   5.         JavaCompiler compiler =      ToolProvider.getSystemJavaCompiler();  
   6.         int compilationResult = compiler.run(null, null, null, fileToCompile);  
   7.         if (compilationResult == 0) {  
   8.             System.out.println("Compilation is successful");  
   9.         } else {  
  10.             System.out.println("Compilation Failed");  
  11.         }  
  12.     }  
  13. }