我写了一个,主要是要控制循环
你运行后看看就知道了
package com.bob.exam;/**
* <p>Title: </p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2005</p>
*
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
class Untitled4 {
public Untitled4() {
} public static void main(String para[]) { int i = 2; int j = 0; int k = 16; //记录总数 boolean flag = false; while (i < 16) { if (i - j == 2) {
System.out.println("<tr>");
} else
if (i - j == 3) {
flag = true;
} System.out.print("<td>"); System.out.print(" test "); System.out.println("</td>"); if (flag == true) {
flag = false;
System.out.println("</tr>");
j = j + 2;
}
i = i + 1;
}
if(i==k && k%2!=0){
System.out.println("</tr>");
} }}
你运行后看看就知道了
package com.bob.exam;/**
* <p>Title: </p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2005</p>
*
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
class Untitled4 {
public Untitled4() {
} public static void main(String para[]) { int i = 2; int j = 0; int k = 16; //记录总数 boolean flag = false; while (i < 16) { if (i - j == 2) {
System.out.println("<tr>");
} else
if (i - j == 3) {
flag = true;
} System.out.print("<td>"); System.out.print(" test "); System.out.println("</td>"); if (flag == true) {
flag = false;
System.out.println("</tr>");
j = j + 2;
}
i = i + 1;
}
if(i==k && k%2!=0){
System.out.println("</tr>");
} }}
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怎么实现这一步,不知道这位兄弟能否再帮一下,非常感激不尽.谢谢
while(rs.next()){
rs.getString("xx");
}
能行的话,应该不会出什么问题吧。你再仔细检查一下代码
-----------------------------------------------------------
UserInfoBean.java
package com.bob.exam;class UserInfoBean {
private String name;
private int id;
private int password;
public UserInfoBean() {
} public void setName(String name) {
this.name = name;
} public void setId(int id) {
this.id = id;
} public void setPassword(int password) {
this.password = password;
} public String getName() {
return name;
} public int getId() {
return id;
} public int getPassword() {
return password;
}}
-----------------------------------------------------
ListTest.javapackage com.bob.exam;import java.util.*;class ListTest {
public ListTest() {
} public List getList() { List l = new ArrayList(); int i = 0;
while (i < 10) {
UserInfoBean ui = new UserInfoBean();
ui.setId(i);
ui.setName("bob" + i);
ui.setPassword((int) (Math.random() * 1000000));
l.add(ui);
i++;
}
return l;
}}
------------------------------------------------------
Untitled4.javapackage com.bob.exam;import java.util.Iterator;
class Untitled4 { public static void main(String para[]) { ListTest tempList = new ListTest(); Iterator list = tempList.getList().iterator(); int i = 2; int j = 0; int k = 10; boolean flag = false; while (list.hasNext()) {
UserInfoBean ui = (UserInfoBean)list.next();
if (i - j == 2) {
System.out.println("<tr>");
} else
if (i - j == 3) {
flag = true;
} System.out.print("<td>"); System.out.print("ID: "+ui.getId()); System.out.print("</td>"); System.out.print("<td>"); System.out.print("NAME: "+ui.getName()); System.out.print("</td>");
System.out.print("<td>"); System.out.println("PASSWORD: "+ui.getPassword()); System.out.println("</td>"); if (flag == true) {
flag = false;
System.out.println("</tr>");
j = j + 2;
}
i = i + 1;
}
if (i == k && k % 2 != 0) {
System.out.println("</tr>");
} }}
<tr><td>ID: 0</td><td>NAME: bob0</td><td>PASSWORD: 65397</td><td>ID: 1</td><td>NAME: bob1</td><td>PASSWORD: 543950</td></tr><tr><td>ID: 2</td><td>NAME: bob2</td><td>PASSWORD: 345474</td><td>ID: 3</td><td>NAME: bob3</td><td>PASSWORD: 507823</td></tr><tr><td>ID: 4</td><td>NAME: bob4</td><td>PASSWORD: 789215</td><td>ID: 5</td><td>NAME: bob5</td><td>PASSWORD: 443167</td></tr><tr><td>ID: 6</td><td>NAME: bob6</td><td>PASSWORD: 199768</td><td>ID: 7</td><td>NAME: bob7</td><td>PASSWORD: 675861</td></tr><tr><td>ID: 8</td><td>NAME: bob8</td><td>PASSWORD: 20488</td><td>ID: 9</td><td>NAME: bob9</td><td>PASSWORD: 862285</td></tr>