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Merge pull request #26 from cmhello88/master
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2月26号作业完成!
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nusubmarine01 authored Mar 5, 2017
2 parents 6e586dc + c84f549 commit 9a5ee20
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>org.lemon.cm</groupId>
<artifactId>lite-struts-0226</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>lite-struts-0226</name>
<url>http://maven.apache.org</url>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-digester/commons-digester -->
<dependency>
<groupId>commons-digester</groupId>
<artifactId>commons-digester</artifactId>
<version>2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/dom4j/dom4j -->
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
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package com.coderising.array;

import java.util.Arrays;

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[] target = new int[origin.length];
for (int i = origin.length - 1, j = 0; i >= 0; i--, j++) {
target[j] = origin[i];
}
System.out.println(Arrays.toString(target));
}

/**
* 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[] newArr = new int[5]; // 数组初始化,默认给10个位置
int size = 0;

for (int i = 0; i < oldArray.length; i++) {
if (size >= newArr.length) { // 大于初始长度,对新数组进行扩容
newArr = this.grow(newArr, 5);
}
if (oldArray[i] != 0) {
newArr[size] = oldArray[i];
size++;
}
}
// 对结果数组进行排0处理
int[] newArrary = new int[size];
for (int i = 0, j = 0; i < newArr.length; i++) {
if (newArr[i] != 0) {
newArrary[j] = newArr[i];
j++;
}
}
return newArrary;
}

/**
* 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];
System.arraycopy(array1, 0, array3, 0, array1.length);
System.arraycopy(array2, 0, array3, array1.length, array2.length);
int temp = 0;
// 冒泡排序
for (int i = array3.length - 1; i >= 0; i--) {
for (int j = 0; j < i; j++) {
if (array3[j] > array3[j + 1]) {
temp = array3[j + 1];
array3[j + 1] = array3[j];
array3[j] = temp;
}
}
}
// Arrays.sort(array3);
// System.out.println(Arrays.toString(array3));
// 消除重复
for (int i = array3.length - 1; i >= 0; i--) {
for (int j = 0; j < i; j++) {
if (array3[j] == array3[j + 1]) {
array3[j + 1] = 0;
}
}
}
// 去掉0值
return removeZero(array3);
}

/**
* 方法实现二
*
* @param array1
* @param array2
* @return
*/

public int[] mergeMethod(int[] array1, int[] array2) {
int[] array3 = new int[array1.length + array2.length];
System.arraycopy(array1, 0, array3, 0, array1.length);
System.arraycopy(array2, 0, array3, array1.length, array2.length);
int counts = 0; // 找出重复元素个数
for (int i = 0; i < array3.length - 1; i++) {
for (int j = i + 1; j < array3.length; j++) {
if (array3[i] == array3[j]) {
counts++;
break;
}
}
}
// 消除重复
int[] newArr = new int[array3.length - counts];
int index = 0;
for (int i = 0; i < array3.length; i++) {
boolean flag = false;
for (int j = 0; j < newArr.length; j++) {
if (array3[i] == newArr[j]) {
flag = true;
break;
}
}
if (!flag) {
newArr[index++] = array3[i];
}
}
// 排序
Arrays.sort(newArr);
return newArr;
}

/**
* 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];
System.arraycopy(oldArray, 0, newArray, 0, oldArray.length);
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 = 1, b = 1, c = 0, size = 2;
int[] array = new int[0];
if (max <= 1)
return array;
array = new int[] { a, b };
while (true) {
c = a + b;
a = b;
b = c;
if (c > max)
break;
// 对数组进行扩容
array = ensureCapacity(size + 1, array);
array[size] = c;
size++;
}
return removeZero(array);
}

private int[] ensureCapacity(int minCapacity, int[] array) {
if (minCapacity > array.length) {
int newCapacity = Math.max(minCapacity, array.length * 2);
int[] newDataArray = new int[newCapacity];
System.arraycopy(array, 0, newDataArray, 0, array.length);
return newDataArray;
}
return array;
}

/**
* 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 size = 0;
int[] array = new int[0];
if (max < 2) {
return array;
}
for (int i = 2; i < max; i++) {
for (int j = 2; j <= i; j++) {
if (i % j == 0 && i != j) {
break;
}
if (i % j == 0 && i == j) {
array = this.ensureCapacity(size + 1, array);
array[size] = i;
size++;
}
}
}
return this.removeZero(array);
}

/**
* 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 size = 0;
int[] array = new int[0];
if (max < 1) {
return array;
}
for (int i = 1; i <= max; i++) {
int sum = 0;
for (int j = 1; j < i / 2 + 1; j++) {
if (i % j == 0) {
sum += j;
}
}
if (i == sum) {
array = this.ensureCapacity(size + 1, array);
array[size] = i;
size++;
}
}
return this.removeZero(array);
}

/**
* 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) {
StringBuilder sb = new StringBuilder();
if (array == null || array.length == 0) {
return null;
}
for (int i = 0; i < array.length; i++) {
if (i == array.length - 1) {
sb.append(array[i]);
} else {
sb.append(array[i]).append(seperator);
}
}
return sb.toString();
}

}
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package com.coderising.litestruts;

public class LoginAction {

private String name;
private String password;
private String mssage;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

public String getMssage() {
return mssage;
}

public void setMssage(String mssage) {
this.mssage = mssage;
}

public String execute() {
if (this.getName().equals("test") && this.getPassword().equals("1234")) {
this.setMssage("login successful");
return "success";
} else {
this.setMssage("login failed,please check your user/pwd");
return "fail";
}
}
}
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