86 lines
2.3 KiB
Java
86 lines
2.3 KiB
Java
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/*
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*
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* Matt Jensen
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* CS 145, Spring 2019
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* Assignment X
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* 5/15/19
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*
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*/
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// stores telephone nodes
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import java.util.*;
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public class PhoneBook {
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private String name;
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private TelephoneNode front;
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private TelephoneNode back;
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private int size;
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public PhoneBook( String name ) {
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this.name = name;
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this.size = 0;
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}
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public void add(TelephoneNode node) {
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this.add(this.size, node);
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}
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public void add( int index, TelephoneNode node ) {
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if( index == 0 ) {
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node.next = this.front;
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this.front = node;
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} else {
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TelephoneNode nodeBeforeIndex = this.get( index - 1 );
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//TelephoneNode nodeAtIndex = this.get( index );
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//node.next = nodeAtIndex.next;
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nodeBeforeIndex.next = node;
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}
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this.size++;
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}
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public TelephoneNode get(int index) {
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TelephoneNode currentNode = this.front;
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for( int i = 0; i < index; i++) {
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currentNode = currentNode.next;
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}
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return currentNode; // change back.next from null to node
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}
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public int search(String name) {
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TelephoneNode currentNode = this.front;
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name = name.toLowerCase();
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String nodeName;
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for( int i = 0; i < this.size; i++) {
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nodeName = currentNode.getName().toLowerCase();
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if(nodeName.indexOf(name) >= 0) {
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return i;
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}
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currentNode = currentNode.next;
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}
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return -1;
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}
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public void transfer(int index, PhoneBook destination){
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TelephoneNode node = this.get(index);
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this.remove(index);
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destination.add(node);
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}
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public void remove(int index) {
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if( index == 0 ) {
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this.front = this.front.next;
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} else {
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TelephoneNode nodeBeforeIndex = this.get( index - 1 );
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TelephoneNode nodeAtIndex = this.get( index );
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nodeBeforeIndex.next = nodeAtIndex.next;
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}
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}
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public String getName() {
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return this.name;
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}
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public String toString() {
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String string = this.getName() + "\n";
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TelephoneNode currentNode = this.front;
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while( currentNode != null ) {
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string += currentNode.toString() + "\n";
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currentNode = currentNode.next;
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}
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return string;
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}
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}
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