import re

from check50 import *


class Hello(Checks):

    @check()
    def exists(self):
        """Hello exists"""
        self.require("Hello.java")

    @check("exists")
    def compiles(self):
        """Hello compiles"""
        self.spawn("javac Hello.java").exit(0)

    @check("compiles")
    def output(self):
        """outputs Hello, World!\n """
        self.spawn("java Hello").stdout("Hello, World!\n", "Hello, World!\n").exit(0)


    
944fa0bfaf9332fe637c67c0ba98170c0e89b086
<mask token>


class Hello(Checks):
    <mask token>

    @check('exists')
    def compiles(self):
        """Hello compiles"""
        self.spawn('javac Hello.java').exit(0)
    <mask token>

<mask token>


class Hello(Checks):
    <mask token>

    @check('exists')
    def compiles(self):
        """Hello compiles"""
        self.spawn('javac Hello.java').exit(0)

    @check('compiles')
    def output(self):
        """outputs Hello, World!
 """
        self.spawn('java Hello').stdout('Hello, World!\n', 'Hello, World!\n'
            ).exit(0)

<mask token>


class Hello(Checks):

    @check()
    def exists(self):
        """Hello exists"""
        self.require('Hello.java')

    @check('exists')
    def compiles(self):
        """Hello compiles"""
        self.spawn('javac Hello.java').exit(0)

    @check('compiles')
    def output(self):
        """outputs Hello, World!
 """
        self.spawn('java Hello').stdout('Hello, World!\n', 'Hello, World!\n'
            ).exit(0)

import re
from check50 import *


class Hello(Checks):

    @check()
    def exists(self):
        """Hello exists"""
        self.require('Hello.java')

    @check('exists')
    def compiles(self):
        """Hello compiles"""
        self.spawn('javac Hello.java').exit(0)

    @check('compiles')
    def output(self):
        """outputs Hello, World!
 """
        self.spawn('java Hello').stdout('Hello, World!\n', 'Hello, World!\n'
            ).exit(0)

import re

from check50 import *


class Hello(Checks):

    @check()
    def exists(self):
        """Hello exists"""
        self.require("Hello.java")

    @check("exists")
    def compiles(self):
        """Hello compiles"""
        self.spawn("javac Hello.java").exit(0)

    @check("compiles")
    def output(self):
        """outputs Hello, World!\n """
        self.spawn("java Hello").stdout("Hello, World!\n", "Hello, World!\n").exit(0)


    