我想得到以下树状结果,[三街]为根节点,其中a2,a3,a5三个子节点被勾选
[三街]
a1
a2
a3
a4
a5
a6
可是为什么我的程序的双重循环后结果不对;public static String tree() {
StringBuffer strResult = new StringBuffer(); String[] s = { "a2", "a5", "a3" };
String[] st = { "a1", "a2", "a3", "a4", "a5", "a6" }; strResult.append("[三街]<br> "); for (int i = 0; i < st.length; i++) {
for (int j = 0; j < s.length; j++) {
if (st[i].equals(s[j])) {
strResult.append("<input type=\"checkbox\" checked />"
+ st[i] + "<br>");
} else {
strResult.append("<input type=\"checkbox\">" + st[i]
+ "<br>");
}
}
}
String treestr = strResult.toString();
return treestr;
}请帮我改改
[三街]
a1
a2
a3
a4
a5
a6
可是为什么我的程序的双重循环后结果不对;public static String tree() {
StringBuffer strResult = new StringBuffer(); String[] s = { "a2", "a5", "a3" };
String[] st = { "a1", "a2", "a3", "a4", "a5", "a6" }; strResult.append("[三街]<br> "); for (int i = 0; i < st.length; i++) {
for (int j = 0; j < s.length; j++) {
if (st[i].equals(s[j])) {
strResult.append("<input type=\"checkbox\" checked />"
+ st[i] + "<br>");
} else {
strResult.append("<input type=\"checkbox\">" + st[i]
+ "<br>");
}
}
}
String treestr = strResult.toString();
return treestr;
}请帮我改改
StringBuffer strResult = new StringBuffer(); String[] s = { "a2", "a5", "a3" };
String[] st = { "a1", "a2", "a3", "a4", "a5", "a6" }; strResult.append("[三街] <br> "); for (int i = 0; i < st.length; i++) {
for (int j = 0; j < s.length; j++) {
if (st[i].equals(s[j])) {
strResult.append(" <input type=\"checkbox\" checked />"
+ st[i] + " <br>");
}
}
strResult.append(" <input type=\"checkbox\">" + st[i]
+ " <br>");
}
String treestr = strResult.toString();
return treestr;
}
StringBuffer strResult = new StringBuffer(); String[] s = { "a2", "a5", "a3" };
String[] st = { "a1", "a2", "a3", "a4", "a5", "a6" }; strResult.append("[三街] <br> "); for (int i = 0; i < st.length; i++) {
boolean isCheck = false;
for (int j = 0; j < s.length; j++) {
if (st[i].equals(s[j])) {
strResult.append(" <input type=\"checkbox\" value=\""+st[i]+"\" checked>"
+ st[i] + " <br>");
isCheck = true;
}
}
if(!isCheck){
strResult.append(" <input type=\"checkbox\" value=\""+st[i]+"\">" + st[i] + " <br>");
}
}
String treestr = strResult.toString();
System.out.println(treestr);
return treestr;
}
public static String tree() {
StringBuffer strResult = new StringBuffer(); String[] s = { "a2", "a5", "a3" };
String[] st = { "a1", "a2", "a3", "a4", "a5", "a6" }; strResult.append("[三街] <br> ");
int k = -1;
for (int i = 0; i < st.length; i++) {
k = -1;
for (int j = 0; j < s.length; j++) {
if (st[i].equals(s[j])) {
k = i;
}
}
if (k > -1) {
strResult.append(" <input type=\"checkbox\" checked />"
+ st[i] + " <br>\n");
} else {
strResult.append(" <input type=\"checkbox\">" + st[i]
+ " <br>\n");
}
}
String treestr = strResult.toString();
//System.out.println(treestr);
return treestr;
}
[/code]
StringBuffer strResult = new StringBuffer(); String[] s = { "a2", "a5", "a3" };
String[] st = { "a1", "a2", "a3", "a4", "a5", "a6" }; strResult.append("[三街] <br> ");
int k = -1;
for (int i = 0; i < st.length; i++) {
k = -1;
for (int j = 0; j < s.length; j++) {
if (st[i].equals(s[j])) {
k = i;
}
}
if (k > -1) {
strResult.append(" <input type=\"checkbox\" checked />"
+ st[i] + " <br>\n");
} else {
strResult.append(" <input type=\"checkbox\">" + st[i]
+ " <br>\n");
}
}
String treestr = strResult.toString();
System.out.println(treestr);
return treestr;
}