Complete newbie to Java, can't do my homework

[rreimche]

As for the text of my homework (I study, besides other things, software development. We've started with functional programming and haskell and now moved to OOP and Java), I must implement a class and some functions. Seems for me that I have did everything right (or near it), but the compiler says I'm wrong. Here's the code:

class List { 
	double[] content;
}

List create (){ return new List; }

void append (List l, double elem){ l[l.length+1] = elem; }

int size ( List l ){ return l.length; }

double get ( List l, int index ){ return l[index]; }

void put (List l, int index){
	l[index] = elem;
}

void remove ( List l, int index ){ 
	for ( int i = index; i < l.length-1; i++ )
		l[i] = l[i+1];
	l[l.length-1] = null;
}

boolean contains ( List l, double elem){
	for ( int i = 0; i<l.length-1; i++ )
	{	if ( l[i] == elem ) return True; }
	return False;
}

public class ListsManipulation {
	public static void main( String[] args)
	{}	
}

As an error, compiler gives me "class, interface, or enum expected" many times.

That's the complete listing:

Roman-Reimche-2:Uebungen rreimche$ javac u9.java
u9.java:6: class, interface, or enum expected
List create (){ return new List; }
^
u9.java:6: class, interface, or enum expected
List create (){ return new List; }
^
u9.java:8: class, interface, or enum expected
void append (List l, double elem){ l[l.length+1] = elem; }
^
u9.java:10: class, interface, or enum expected
int size ( List l ){ return l.length; }
^
u9.java:12: class, interface, or enum expected
double get ( List l, int index ){ return l[index]; }
^
u9.java:16: class, interface, or enum expected
}
^
u9.java:19: class, interface, or enum expected
for ( int i = index; i < l.length-1; i++ )
^
u9.java:19: class, interface, or enum expected
for ( int i = index; i < l.length-1; i++ )
^
u9.java:21: class, interface, or enum expected
l[l.length-1] = null;
^
u9.java:22: class, interface, or enum expected
}
^
u9.java:25: class, interface, or enum expected
for ( int i = 0; i<l.length-1; i++ )
^
u9.java:25: class, interface, or enum expected
for ( int i = 0; i<l.length-1; i++ )
^
u9.java:26: class, interface, or enum expected
{ if ( l[i] == elem ) return True; }
^
u9.java:28: class, interface, or enum expected
}
^
14 errors

I don't know what the compiler likes not...

[DarrylBurke]

Please go through the Forum Rules -- particularly the third paragraph.

Also learn and respect the Java coding conventions in respect of line breaks and indents: Code Conventions for the Java Programming Language: Contents

You need to start at the beginning. Methods have to be inside a class.
Lesson: The "Hello World!" Application (The Java™ Tutorials > Getting Started)
Trail: Learning the Java Language (The Java™ Tutorials)

db

[Fubarable]

The compiler is right 99.9% of the time, and it is right this time. Check all of your opening and closing curly braces, especially the braces that enclose the whole class. Notice anything off?