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Merge pull request #23 from lyz337959725/master
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0305作业
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jodie-zss authored Mar 5, 2017
2 parents 442cdaa + c201ddc commit a49bf08
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3 changes: 2 additions & 1 deletion group15/1515_337959725/.classpath
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
<classpathentry kind="output" path="bin"/>
</classpath>
2 changes: 1 addition & 1 deletion group15/1515_337959725/.project
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>BasicTest</name>
<name>coding0305</name>
<comment></comment>
<projects>
</projects>
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11 changes: 11 additions & 0 deletions group15/1515_337959725/.settings/org.eclipse.jdt.core.prefs
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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
org.eclipse.jdt.core.compiler.compliance=1.5
org.eclipse.jdt.core.compiler.debug.lineNumber=generate
org.eclipse.jdt.core.compiler.debug.localVariable=generate
org.eclipse.jdt.core.compiler.debug.sourceFile=generate
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.source=1.5
184 changes: 184 additions & 0 deletions group15/1515_337959725/src/com/coderising/array/ArrayUtil.java
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package com.coderising.array;

public class ArrayUtil {

/**
* 给定一个整形数组a , 对该数组的值进行置换
例如: a = [7, 9 , 30, 3] , 置换后为 [3, 30, 9,7]
如果 a = [7, 9, 30, 3, 4] , 置换后为 [4,3, 30 , 9,7]
* @param origin
* @return
*/
public void reverseArray(int[] origin){
int a;
int length=origin.length;
for(int i=0;i<length/2;i++){
a=origin[i];
origin[i]=origin[length-i-1];
origin[length-i-1]=a;
}
}

/**
* 现在有如下的一个数组: int oldArr[]={1,3,4,5,0,0,6,6,0,5,4,7,6,7,0,5}
* 要求将以上数组中值为0的项去掉,将不为0的值存入一个新的数组,生成的新数组为:
* {1,3,4,5,6,6,5,4,7,6,7,5}
* @param oldArray
* @return
*/

public int[] removeZero(int[] oldArray){
int[] newArray=new int[oldArray.length];
int j=0;
for(int i=0;i<oldArray.length;i++){
if(oldArray[i]!=0){
newArray[j]=oldArray[i];
j++;
}
}
return newArray;
}

/**
* 给定两个已经排序好的整形数组, a1和a2 , 创建一个新的数组a3, 使得a3 包含a1和a2 的所有元素, 并且仍然是有序的
* 例如 a1 = [3, 5, 7,8] a2 = [4, 5, 6,7] 则 a3 为[3,4,5,6,7,8] , 注意: 已经消除了重复
* @param array1
* @param array2
* @return
*/

public int[] merge(int[] array1, int[] array2){
int[] array3=new int[array1.length+array2.length];
int i=0,j=0,k=0;
while(i<array1.length&&j<array2.length){
if(array1[i]<array2[j]){
array3[k]=array1[i];
i++;
k++;
}else if(array1[i]>array2[j]){
array3[k]=array1[j];
j++;
k++;
}
}
return array3;
}
/**
* 把一个已经存满数据的数组 oldArray的容量进行扩展, 扩展后的新数据大小为oldArray.length + size
* 注意,老数组的元素在新数组中需要保持
* 例如 oldArray = [2,3,6] , size = 3,则返回的新数组为
* [2,3,6,0,0,0]
* @param oldArray
* @param size
* @return
*/
public int[] grow(int [] oldArray, int size){
int[] newArray =new int[oldArray.length+size];
int i;
for(i=0;i<oldArray.length;i++){
newArray[i]=oldArray[i];
}
for(int j=0;j<size;j++){
newArray[i]=0;
i++;
}
return newArray;
}

/**
* 斐波那契数列为:1,1,2,3,5,8,13,21...... ,给定一个最大值, 返回小于该值的数列
* 例如, max = 15 , 则返回的数组应该为 [1,1,2,3,5,8,13]
* max = 1, 则返回空数组 []
* @param max
* @return
*/
public int[] fibonacci(int max){
int[] a =new int[max];
if(max<=1){
return null;
}else{
a[0]=1;
a[1]=1;
int i=2;
while(a[i-1]<max){
a[i]=a[i-1]+a[i-2];
i++;
}
return a;
}
}

/**
* 返回小于给定最大值max的所有素数数组
* 例如max = 23, 返回的数组为[2,3,5,7,11,13,17,19]
* @param max
* @return
*/
public int[] getPrimes(int max){
int[] a =new int[max/2];
if(max<=1){
return null;
}else{
int k=0;
boolean flag=false;
for(int i=2;i<max;i++){
flag=false;
for(int j=2;j<i-1;j++){
if(i%j==0){
flag=true;
}
}
if(!flag){
a[k]=i;
k++;
}
}
}
return a;
}

/**
* 所谓“完数”, 是指这个数恰好等于它的因子之和,例如6=1+2+3
* 给定一个最大值max, 返回一个数组, 数组中是小于max 的所有完数
* @param max
* @return
*/
public int[] getPerfectNumbers(int max){
int[] a =new int[10];
int k=0;
int sum=0;
for(int i=1;i<max;i++){
sum=0;
for(int j=1;j<i;j++){
if(i%j==0){
sum=sum+j;
}
}
if(i==sum){
a[k]=i;
k++;
}
}
return a;
}

/**
* 用seperator 把数组 array给连接起来
* 例如array= [3,8,9], seperator = "-"
* 则返回值为"3-8-9"
* @param array
* @param s
* @return
*/
public String join(int[] array, String seperator){
String str = "";
for(int i=0;i<array.length-1;i++){
str=str+array[i]+seperator;
}
str=str+array[array.length-1];
return str;
}


}

90 changes: 90 additions & 0 deletions group15/1515_337959725/src/com/coderising/array/ArrayUtilTest.java
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package com.coderising.array;

import java.util.Arrays;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class ArrayUtilTest {
ArrayUtil arrayUtil;
@Before
public void setUp() throws Exception {
arrayUtil =new ArrayUtil();
}

@After
public void tearDown() throws Exception {
}

@Test
public void testReverseArray() {
int[] a1={7, 9, 30, 3,4};
int[] a2={7,9,30,3};
arrayUtil.reverseArray(a1);
arrayUtil.reverseArray(a2);
System.out.println("testReverseArray");
System.out.println(Arrays.toString(a1));
System.out.println(Arrays.toString(a2));
}

@Test
public void testRemoveZero() {
int oldArr[]={1,3,4,5,0,0,6,6,0,5,4,7,6,7,0,5};
int[] newArray = arrayUtil.removeZero(oldArr);
System.out.println("testRemoveZero");
System.out.println(Arrays.toString(newArray));
}

/* @Test
public void testMerge() {
int[] a1 = {3, 5, 7,8};
int[] a2 = {4, 5, 6,7};
int[] a3 = arrayUtil.merge(a1, a2);
System.out.println("testMerge");
System.out.println(Arrays.toString(a3));
}*/

@Test
public void testGrow() {
int[] a1 = {3, 5, 7,8};
int size=3;
int[] a2 = arrayUtil.grow(a1, size);
System.out.println("testGrow");
System.out.println(Arrays.toString(a2));
}

@Test
public void testFibonacci() {
int max = 15;
int[] a = arrayUtil.fibonacci(max);
System.out.println("testFibonacci");
System.out.println(Arrays.toString(a));
}

@Test
public void testGetPrimes() {
int max = 23;
int[] a = arrayUtil.getPrimes(max);
System.out.println("testGetPrimes");
System.out.println(Arrays.toString(a));
}

@Test
public void testGetPerfectNumbers() {
int max = 80;
int[] a = arrayUtil.getPerfectNumbers(max);
System.out.println("testGetPerfectNumbers");
System.out.println(Arrays.toString(a));
}

@Test
public void testJoin() {
int[] a1 = {3, 5, 7,8};
String seperator = "-";
String a = arrayUtil.join(a1, seperator);
System.out.println("testJoin");
System.out.println(a);
}

}
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package com.coderising.litestruts;

/**
* 这是一个用来展示登录的业务类, 其中的用户名和密码都是硬编码的。
* @author liuxin
*
*/
public class LoginAction{
private String name ;
private String password;
private String message;

public String getName() {
return name;
}

public String getPassword() {
return password;
}

public String execute(){
if("test".equals(name) && "1234".equals(password)){
this.message = "login successful";
return "success";
}
this.message = "login failed,please check your user/pwd";
return "fail";
}

public void setName(String name){
this.name = name;
}
public void setPassword(String password){
this.password = password;
}
public String getMessage(){
return this.message;
}
}
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