java single link list

class LinkList1
{
public Link head;

public LinkList1(){
head=null;

}
public void insertfirst(int data){
Link newLink= new Link(data, head);
head=newLink;
}

public Link search (int key){
if (head=null);
System.out.println("empty list");
return null;
Link current=head;
while (current.getData!=key)
{
if
(current.next==null)

return null;

else
current=current.next;

Question

java single link list

 class LinkList1 
 {
    public Link head;
    
    public LinkList1(){
        head=null;
       
        
    }
    public void insertfirst(int data){
        Link newLink= new Link(data, head);
        head=newLink;
    }
    
public Link search (int key){
    if (head=null);
    System.out.println("empty list");
    return null;
    Link current=head;
    while (current.getData!=key)
    {
        if
                (current.next==null)
            
            return null;
       
    else
            current=current.next;

e.mccormick · Answer

What problem are you having?

rsmith6559 · Answer

if (head=null);

A single equal sign is for assignment, comparison uses a double equal sign.  If statements don't have a semi-colon.  More than one line in an if stanza should have braces around them.