Question: I have 4 errors in my source code. They are all in my last method. I need help correcting them. Source code: public class adding_After{
I have 4 errors in my source code. They are all in my last method. I need help correcting them. Source code:
public class adding_After{ private Node head; private Node tail; public void adding_After(T element, T after){ Node tmp = head;
Node refNode = null;
System.out.println("Traversing to all nodes..");
while(true){
if(tmp == null){
break;
}
if(tmp.compareTo(after) == 0){
refNode = tmp;
break;
}
tmp = tmp.getNextRef();
}
if(refNode != null){
Node nd = new Node();
nd.setValue(element);
nd.setNextRef(tmp.getNextRef());
if(tmp == tail){
tail = nd;
}
tmp.setNextRef(nd);
} else {
System.out.println("Unable to find the given element...");
}
}
public void delete_Front(){
if(head == null){
System.out.println("Underflow...");
}
Node tmp = head;
head = tmp.getNextRef();
if(head == null){
tail = null;
}
System.out.println("Deleted: "+tmp.getValue());
}
public void deleteAfter(T after){
Node tmp = head;
Node refNode = null;
System.out.println("Traversing to all nodes..");
while(true){
if(tmp == null){
break;
}
if(tmp.compareTo(after) == 0){
refNode = tmp;
break;
}
tmp = tmp.getNextRef();
}
if(refNode != null){
tmp = refNode.getNextRef();
refNode.setNextRef(tmp.getNextRef());
if(refNode.getNextRef() == null){
tail = refNode;
}
System.out.println("Deleted: "+tmp.getValue());
} else {
System.out.println("Unable to find the given element...");
}
}
public void traverse(){
Node tmp = head;
while(true){
if(tmp == null){
break;
}
System.out.println(tmp.getValue());
tmp = tmp.getNextRef();
}
}
public static void main(String a[]){ SinglyLinkedListImpl sl = new SinglyLinkedListImpl();
sl.add(3);
sl.add(32);
sl.add(54);
sl.add(89);
sl.adding_After(76, 54);
sl.delete_Front();
sl.deleteAfter(76);
sl.traverse();
}
}
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This is my Node file:
class Node implements Comparable {
private T value;
private Node nextRef;
public T getValue() {
return value;
}
public void setValue(T value) {
this.value = value;
}
public Node getNextRef() {
return nextRef;
}
public void setNextRef(Node ref) {
this.nextRef = ref;
}
public int compareTo(T arg) {
if(arg == this.value){
return 0;
} else {
return 1;
}
}
}
-----------------------------------------------------------------------------------
SinglyLinkedListImpl
public class SinglyLinkedListImpl
System.out.println("Adding: "+element); if(head == null){ head = nd;
tail = nd;
} else {
tail.setNextRef(nd); } tail = nd;
}
}
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