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0305作业
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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> |
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11 changes: 11 additions & 0 deletions
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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 |
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184
group15/1515_337959725/src/com/coderising/array/ArrayUtil.java
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package com.coderising.array; | ||
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public class ArrayUtil { | ||
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/** | ||
* 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; | ||
} | ||
} | ||
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/** | ||
* 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 | ||
*/ | ||
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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; | ||
} | ||
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/** | ||
* 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 | ||
*/ | ||
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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; | ||
} | ||
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/** | ||
* 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; | ||
} | ||
} | ||
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/** | ||
* 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; | ||
} | ||
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/** | ||
* 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; | ||
} | ||
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/** | ||
* 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; | ||
} | ||
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} | ||
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90
group15/1515_337959725/src/com/coderising/array/ArrayUtilTest.java
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package com.coderising.array; | ||
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import java.util.Arrays; | ||
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import org.junit.After; | ||
import org.junit.Before; | ||
import org.junit.Test; | ||
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public class ArrayUtilTest { | ||
ArrayUtil arrayUtil; | ||
@Before | ||
public void setUp() throws Exception { | ||
arrayUtil =new ArrayUtil(); | ||
} | ||
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@After | ||
public void tearDown() throws Exception { | ||
} | ||
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@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)); | ||
} | ||
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@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)); | ||
} | ||
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/* @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)); | ||
}*/ | ||
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@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)); | ||
} | ||
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@Test | ||
public void testFibonacci() { | ||
int max = 15; | ||
int[] a = arrayUtil.fibonacci(max); | ||
System.out.println("testFibonacci"); | ||
System.out.println(Arrays.toString(a)); | ||
} | ||
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@Test | ||
public void testGetPrimes() { | ||
int max = 23; | ||
int[] a = arrayUtil.getPrimes(max); | ||
System.out.println("testGetPrimes"); | ||
System.out.println(Arrays.toString(a)); | ||
} | ||
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@Test | ||
public void testGetPerfectNumbers() { | ||
int max = 80; | ||
int[] a = arrayUtil.getPerfectNumbers(max); | ||
System.out.println("testGetPerfectNumbers"); | ||
System.out.println(Arrays.toString(a)); | ||
} | ||
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@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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} |
39 changes: 39 additions & 0 deletions
39
group15/1515_337959725/src/com/coderising/litestruts/LoginAction.java
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package com.coderising.litestruts; | ||
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/** | ||
* 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; | ||
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public String getName() { | ||
return name; | ||
} | ||
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public String getPassword() { | ||
return password; | ||
} | ||
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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"; | ||
} | ||
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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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