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+ <?xml version =" 1.0" encoding =" UTF-8" ?>
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+ <classpath >
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+ <classpathentry kind =" src" path =" src" />
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+ <classpathentry kind =" con" path =" org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8" />
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+ <classpathentry kind =" con" path =" org.eclipse.jdt.junit.JUNIT_CONTAINER/4" />
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+ <classpathentry kind =" output" path =" bin" />
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+ </classpath >
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+ /bin /
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+ <?xml version =" 1.0" encoding =" UTF-8" ?>
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+ <projectDescription >
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+ <name >1766538130226Lesson</name >
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+ <comment ></comment >
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+ <projects >
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+ </projects >
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+ <buildSpec >
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+ <buildCommand >
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+ <name >org.eclipse.jdt.core.javabuilder</name >
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+ <arguments >
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+ </arguments >
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+ </buildCommand >
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+ </buildSpec >
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+ <natures >
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+ <nature >org.eclipse.jdt.core.javanature</nature >
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+ </natures >
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+ </projectDescription >
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+ eclipse.preferences.version =1
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+ org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode =enabled
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+ org.eclipse.jdt.core.compiler.codegen.targetPlatform =1.8
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+ org.eclipse.jdt.core.compiler.codegen.unusedLocal =preserve
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+ org.eclipse.jdt.core.compiler.compliance =1.8
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+ org.eclipse.jdt.core.compiler.debug.lineNumber =generate
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+ org.eclipse.jdt.core.compiler.debug.localVariable =generate
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+ org.eclipse.jdt.core.compiler.debug.sourceFile =generate
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+ org.eclipse.jdt.core.compiler.problem.assertIdentifier =error
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+ org.eclipse.jdt.core.compiler.problem.enumIdentifier =error
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+ org.eclipse.jdt.core.compiler.source =1.8
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+ package com .coding .basic ;
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+
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+ public class ArrayList implements List {
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+
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+ private int size = 0 ;
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+ private Object [] obj = new Object [5 ];
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+
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+ @ Override
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+ public void add (Object o ) {
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+ if (this .size < 0 )
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+ System .out .print ("Error" );
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+ this .extend (100 );
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+ obj [this .size ] = o ;
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+ this .size ++;
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+ }
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+
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+ @ Override
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+ public void add (int index , Object o ) {
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+
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+ if (index < 0 )
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+ System .out .println ("Error" );
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+ if (index < this .size ){
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+ extend (100 );
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+ for (int i = this .size ;i < index ; i --){
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+ obj [i +1 ] = obj [i ];
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+ }
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+ obj [index ] = o ;
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+ }else if (index >= size ){
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+ extend (100 );
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+ obj [size ] = o ;
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+ }
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+ this .size ++;
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+ }
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+
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+ @ Override
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+ public Object get (int index ) {
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+ if (index < 0 || index > size ){
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+ System .out .println ("Error" );
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+ return null ;
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+ }
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+ return obj [index ];
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+ }
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+
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+ @ Override
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+ public Object remove (int index ) {
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+ if (index < 0 || index > size ){
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+ System .out .println ("Error" );
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+ return null ;
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+ }
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+ for (int i = index ;i <= size ;i ++){
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+ obj [i ] = obj [i +1 ];
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+ }
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+ size --;
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+ return obj [index ];
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+ }
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+
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+ @ Override
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+ public int size () {
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+ return size ;
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+ }
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+ public int length (){
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+ return obj .length ;
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+ }
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+ public void extend (int newLength ){
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+ if (this .size >= obj .length ){
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+ //À©Õ¹Êý×é
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+ Object [] old = obj ;
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+ obj = new Object [size +newLength ];
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+ for (int i = 0 ;i < size ; i ++){
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+ obj [i ] = old [i ];
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+ }
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+ }
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+ return ;
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+ }
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+ public void Iteror (){
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+ for (int i = 0 ;i < size ; i ++){
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+ System .out .println (obj [i ]);
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+ }
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+ }
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+ }
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+ package com .coding .basic ;
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+
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+ public class LinkList implements List {
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+
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+ private Node head ; //头结点不计算个数
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+ private static class Node {
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+ Object data ;
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+ Node next ;
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+ }
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+
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+ @ Override
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+ public void add (Object o ) {
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+ //第一步没有想到
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+ if (null == head ){
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+ head = new Node ();
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+ head .next = null ;
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+ head .data = o ;
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+ }else {
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+ //尾插入法
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+ //Node t = new Node();
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+ Node t ;
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+ Node ins = new Node ();
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+ t = head ;
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+ while (t .next != null ){
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+ t = t .next ;
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+ }
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+ t .next = ins ;
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+ ins .next = null ;
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+ ins .data = o ;
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+ }
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+ }
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+
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+ @ Override
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+ public void add (int index , Object o ) {
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+ if (index < 0 ){
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+ System .out .println ("Error" );
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+ }else if (index == 0 || index == 1 ){
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+ Node t = new Node ();
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+ t .next = head .next ;
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+ head .next = t ;
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+ t .data = o ;
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+ }else {
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+ Node t = new Node ();//当前节点
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+ Node p = new Node ();//前一个节点
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+ t = head .next ;
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+ for (int i = 1 ;i < index ;i ++){
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+ p = t ;
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+ t = t .next ;
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+ }
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+ Node ins = new Node ();
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+ p .next = ins ;
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+ ins .next = t ;
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+ ins .data = o ;
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+ }
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+
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+ }
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+
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+ @ Override
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+ public Object get (int index ) {
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+ if (index < 0 || head == null ){
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+ System .out .println ("Error" );
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+ return null ;
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+ }else {
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+ Node t ;
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+ t = head ;
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+ for (int i = 1 ;i < index ;i ++){
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+ t = t .next ;
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+ }
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+ return t .data ;
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+ }
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+ }
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+
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+ @ Override
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+ public Object remove (int index ) {
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+
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+ return null ;
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+ }
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+
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+ public void display (){
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+ if (head == null ){
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+ System .out .println ("No Data" );
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+ }else {
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+ Node t ;
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+ t = head ;
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+ while (t != null ){
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+ System .out .println ("******" +t .data );
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+ t = t .next ;
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+ }
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+ }
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+
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+ }
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+ @ Override
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+ public int size () {
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+ return 0 ;
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+ }
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+ }
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+ package com .coding .basic ;
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+
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+ public interface List {
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+ public void add (Object o );
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+ public void add (int index ,Object o );
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+ public Object get (int index );
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+ public Object remove (int index );
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+ public int size ();
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+ }
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+ package com .coding .basic ;
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+
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+ public class Queue {
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+
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+ private LinkList elementData = new LinkList ();
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+ private int front = 0 ;
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+ private int rear = 0 ;
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+
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+
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+ public void enQueue (Object o ){
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+ elementData .add (o );
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+ rear ++;
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+ }
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+ public Object deQueue (){
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+ if (!isEmpty ()){
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+ Object obj = elementData .remove (front );
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+ front ++;
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+ return obj ;
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+ }else {
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+ System .out .println ("Queue is empty" );
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+ return null ;
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+ }
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+ }
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+ public boolean isEmpty (){
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+ if (front > rear ){
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+ return true ;
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+ }
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+ return false ;
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+ }
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+
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+ public int size (){
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+ return rear -front +1 ;
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+ }
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+ }
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+
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+ package com .coding .basic ;
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+
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+ public class Stack {
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+
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+ //
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+ private ArrayList elementData = new ArrayList ();
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+ private int top = 0 ;
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+
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+ public void push (Object o ){
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+ elementData .add (o );
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+ top ++;
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+ }
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+
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+ public Object pop (){
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+ if (!isEmpty ()){
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+ System .out .println ("stack is empoty" );
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+ return null ;
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+ }
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+ Object obj = elementData .remove (top );
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+ top --;
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+ return obj ;
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+ }
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+
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+ public Object peek (){
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+ return elementData .get (top );
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+ }
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+
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+ public boolean isEmpty (){
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+ if (top != 0 ){
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+ return true ;
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+ }
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+ return false ;
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+ }
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+
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+ public int size (){
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+ return top ++;
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+ }
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+
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+
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+
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+ }
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+ package com .coding .basic ;
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+
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+ import static org .junit .Assert .*;
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+
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+ public class Test {
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+
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+ @ org .junit .Test
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+ public void test () {
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+
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+ /* ArrayList al = new ArrayList();
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+ al.add(1);
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+ al.add(2);
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+ al.add(3);
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+ al.add(4);
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+ al.add(5);
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+ al.add(200);
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+ al.add(10,100);
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+ al.Iteror();
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+ //System.out.println(al.length());
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+ //System.out.println(al.size());
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+ System.out.println("==================");
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+ al.remove(0);
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+ al.Iteror();*/
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+
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+ LinkList ls = new LinkList ();
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+ ls .add (100 );
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+ ls .add (300 );
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+ ls .add (500 );
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+ ls .add (1000 );
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+ ls .add (3 ,2000 );
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+ ls .display ();
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+ System .out .println (ls .get (4 ));
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+ }
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+
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+ }
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+
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+ <?xml version =" 1.0" encoding =" UTF-8" ?>
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+ <projectDescription >
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+ <name >RemoteSystemsTempFiles</name >
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+ <comment ></comment >
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+ <projects >
6
+ </projects >
7
+ <buildSpec >
8
+ </buildSpec >
9
+ <natures >
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+ <nature >org.eclipse.rse.ui.remoteSystemsTempNature</nature >
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+ </natures >
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+ </projectDescription >
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