Moved provided LinkedStringList to correct package
parent
c204456691
commit
0c1768238e
@ -1,95 +1,95 @@
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package _3._2;
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public class LinkedStringList {
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private LinkedStringListElement start;
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public int size() {
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int result = 0;
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LinkedStringListElement tmp = start;
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while (tmp != null) {
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tmp = tmp.getNext();
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result++;
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}
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return result;
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}
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public String get(int index) {
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if (start == null) { // list is empty
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return null;
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}
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LinkedStringListElement current = start;
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int pos = 0; // counter for finding the right position
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while (pos < index) {
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if (current.getNext() == null) {
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// list does not have enough elements
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return null;
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}
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current = current.getNext();
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pos++;
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}
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return current.getValue();
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}
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public void add(String value) {
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LinkedStringListElement elem = new LinkedStringListElement();
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elem.setValue(value);
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if (start == null) { // list is empty
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start = elem;
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} else {
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LinkedStringListElement tmp = start;
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while (tmp.getNext() != null) { // find last element
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tmp = tmp.getNext();
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}
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tmp.setNext(elem);
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}
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}
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public String remove(int index) {
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if (start == null) { // list is empty
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return null;
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}
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if (index == 0) { // remove from the beginning of non-empty list
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String result = start.getValue();
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start = start.getNext();
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return result;
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}
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// remove from anywhere in a non-empty list
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LinkedStringListElement current = start;
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int pos = 0; // counter for finding the right position
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while (pos < index - 1) {
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if (current.getNext() == null) {
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// list does not have enough elements
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return null;
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}
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current = current.getNext();
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pos++;
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}
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if (current.getNext() == null) { // not enough elements
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return null;
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}
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String result = current.getNext().getValue();
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current.setNext(current.getNext().getNext());
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return result;
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}
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}
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class LinkedStringListElement {
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private LinkedStringListElement next;
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private String value;
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public LinkedStringListElement getNext() {
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return next;
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}
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public void setNext(LinkedStringListElement next) {
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this.next = next;
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}
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public String getValue() {
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return value;
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}
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public void setValue(String value) {
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this.value = value;
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}
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}
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package provided._3._2;
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public class LinkedStringList {
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private LinkedStringListElement start;
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public int size() {
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int result = 0;
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LinkedStringListElement tmp = start;
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while (tmp != null) {
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tmp = tmp.getNext();
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result++;
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}
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return result;
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}
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public String get(int index) {
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if (start == null) { // list is empty
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return null;
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}
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LinkedStringListElement current = start;
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int pos = 0; // counter for finding the right position
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while (pos < index) {
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if (current.getNext() == null) {
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// list does not have enough elements
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return null;
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}
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current = current.getNext();
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pos++;
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}
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return current.getValue();
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}
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public void add(String value) {
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LinkedStringListElement elem = new LinkedStringListElement();
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elem.setValue(value);
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if (start == null) { // list is empty
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start = elem;
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} else {
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LinkedStringListElement tmp = start;
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while (tmp.getNext() != null) { // find last element
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tmp = tmp.getNext();
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}
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tmp.setNext(elem);
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}
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}
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public String remove(int index) {
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if (start == null) { // list is empty
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return null;
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}
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if (index == 0) { // remove from the beginning of non-empty list
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String result = start.getValue();
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start = start.getNext();
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return result;
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}
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// remove from anywhere in a non-empty list
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LinkedStringListElement current = start;
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int pos = 0; // counter for finding the right position
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while (pos < index - 1) {
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if (current.getNext() == null) {
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// list does not have enough elements
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return null;
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}
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current = current.getNext();
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pos++;
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}
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if (current.getNext() == null) { // not enough elements
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return null;
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}
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String result = current.getNext().getValue();
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current.setNext(current.getNext().getNext());
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return result;
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}
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}
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class LinkedStringListElement {
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private LinkedStringListElement next;
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private String value;
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public LinkedStringListElement getNext() {
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return next;
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}
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public void setNext(LinkedStringListElement next) {
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this.next = next;
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}
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public String getValue() {
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return value;
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}
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public void setValue(String value) {
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this.value = value;
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}
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}
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