Missing method body, or declare abstract in Java

Question

I\'m new to Java and tried to get things running on my computer.

A simple \"hello world program\" fails calling a method

class helloworld
{   
             


        

Answer 1

This line:

public static void helloWorld();

is your problem. Ending a function with a semicolon implies you want it to be abstract and not have a body. This is similar to how methods in interfaces are declared, or if they are marked abstract i.e. no body.

Answer 2

In this code line:

public static void helloWorld(); remove semicolon.

Make it like this:

public static void helloWorld()

To avoid this mistake further on, do it like this:

public static void helloWorld() {

An opening curly brace in the same line would make error detection easier.

Answer 3

Remove the semicolon on the end of this line: public static void helloWorld();

Answer 4

first you focus on your error.. solution of error is (

abstract class HelloWorld
{
public abstract void(String[] args);

you shoud try this ;)