Induce top 20 Java errors

_README.md

This file induces the top 20 error messages in Java. This particular example was prepared by Byron Hart. The version I created for the anti-patterns survey was unforuntely deleted before being archived. To produce the desired error message, uncomment the problematic line of code.

Main.java

//package x does not exist
//import x.*;

public class Main {
    //public Main(){

    //}

    public static void main(String[] args) {
        //int x = 10
        if (1 > 0)
            int y = 10;
        Math.pow(2, 3);
        //’;’ expected
        //System.out.println("Hello world!")
    
        //’(’ expected
        //if 2<3) {
            //System.out.println(2);
        //}

        //’)' expected
        //if (2<3 {
            //System.out.println(2);
        //}

        //cannot find symbol - class Integerx
        //Integerx x = new Integerx();

        //cannot find symbol - method noMethod()
        //noMethod();

        //cannot find symbol - variable x
        //System.out.println(x);

        //’.class’ expected
        //int one = 1;
        //int two = int one;

        //constructor Main in class Main cannot be applied to given types...
        //Main badCon = new Main(3);

        //illegal start of expression
        //public int three = 5;

        //incompatible types: String cannot be converted to java.lang.Double
        //String def = "Hi";
        //Double cast = (Double) def;

        //non-static method nonStatic() cannot be referenced from a static context
        //nonStatic();

        //not a statement
        //2<3;

        //variable i is already defined in method main()
        //int def = 20;
        //String def = "Hello";
    }
    //<identifier> expected
    //x;

    //illegal start of type
    //return 2;

    //invalid method declaration; return type required
    //public noType(){
        //System.out.println("LOL");
    //}

    //missing return statement
    //public int noReturn() {
        //System.out.println("Nope.");
    //}

    //non-static method nonStatic() cannot be referenced from a static context
    //public int nonStatic(){
        //return 1;
    //}
}
//class, interface, or enum expected
//return 2;

//reached end of file while parsing