代码如下:
package cn.sxt.arrays;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Scanner;
public class PrintCalendar {
public static void main(String[] args) throws ParseException {
System.out.println("请输入日期,格式为:2020-9-10");
//输入时间
Scanner scanner=new Scanner(System.in);
String str=scanner.nextLine();
//字符串转为时间类
DateFormat df=new SimpleDateFormat("yyyy-MM-dd");
Date date=df.parse(str);
//时间类转为日期类
Calendar c=new GregorianCalendar();
c.setTime(date);
System.out.print("日"+"\t"+"一"+"\t"+"二"+"\t"+"三"+"\t"+"四"+"\t"+"五"+"\t"+"六\n");
int day=c.get(Calendar.DAY_OF_MONTH);
int days=c.getActualMaximum(Calendar.DATE);
c.set(Calendar.DAY_OF_MONTH, 1);//初始日期为1号
for(int i=0;i<c.get(Calendar.DAY_OF_WEEK)-1;i++) {//确认1号的位置,前面\t代替
System.out.print("\t");
}
for(int i=1;i<=days;i++) {
//判断在时间后面标注
if(day==c.get(Calendar.DAY_OF_MONTH)) {
System.out.print(c.get(Calendar.DAY_OF_MONTH)+"*\t");
}
else {
System.out.print(c.get(Calendar.DAY_OF_MONTH)+"\t");
}
if(c.get(Calendar.DAY_OF_WEEK)==Calendar.SATURDAY) {//周六的时候换行
System.out.println();
}
c.add(Calendar.DAY_OF_MONTH, 1);
}
}
}