Compiling Programmatically

Following example uses the JavaCompiler interface in Java 6 to programmatically compile a Java class:

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

public class CompilerExample {
    public static void main(String[] args) {
        String fileToCompile = "test.java"
        javax.tools.JavaCompiler compiler = javax.tools.ToolProvider.getSystemJavaCompiler();
        int compilationResult = compiler.run(null, null, null, fileToCompile);
        if (compilationResult == 0) {
            System.out.println("Compilation is successful");
        } else {
            System.out.println("Compilation Failed");
        }
    }
}