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// 0 ´ú±íÇ°Ãæ²¹³ä0
// 4 ´ú±í³¤¶ÈΪ4
// d ´ú±í²ÎÊýΪÕýÊýÐÍ
String str1 = String.format("%02d", number1);
System.out.println(str1);// 1Êä³öΪ01
<% String str =null;
PrintWriter pw = response.getWriter();
String[] strs = new String[31];
for(int i =1;i<=30;i++){
if(i<10){
str = " " + i;
}else{
str = " "+i;
}
strs[i]=str;
pw.print(strs[i]);
if(i==7||i==14||i==21||i==28){
pw.println("<br>");
}
}%>
Java code:
public class Test {
public static void main(String[] args) {
String str = null;
String[] strs = new String[31];
for (int i = 1; i <= 30; i++) {
if (i < 10) {
str = i + " ";
} else {
str = i + " ";
}
strs[i] = str;
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