Java获取时间打印到控制台代码实例

这篇文章主要介绍了Java获取时间打印到控制台代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

面试时有一道面试题：要求获取当时时间，并像电子手表那样打印到控制台。

import java.text.SimpleDateFormat;
import java.time.LocalTime;
import java.util.Date;

/**
* 打印时间到控制台
*
*/
public class ConsoleTime {

public static void main(String[] args) {

//    LocalTime now = LocalTime.now();
//    System.out.println(now);
//    System.out.println(now.getHour() + " " + now.getMinute() + " " + now.getSecond());

Date date = new Date();
//yyyy-MM-dd
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");//设置日期格式
String str = format.format(date);
System.out.println("现在时间：" + str);

String[] time = getTime(str.split(":"));
for (int i=0; i<time.length; i++) {
System.out.println(time[i]);
}
}

static String[] getTime(String[] array) {
String[] strArrays = new String[5];
String str1 = "";
String str2 = "";
String str3 = "";
String str4 = "";
String str5 = "";

for (int i=0; i<array.length; i++) {
char[] chars = array[i].toCharArray();
for (int a=0; a<chars.length; a++) {
switch (chars[a]) {
case '0':
str1 += "  --  ";
str2 += " |  | ";
str3 += " |  | ";
str4 += " |  | ";
str5 += "  --  ";
break;
case '1':
str1 += "  |  ";
str2 += "  |  ";
str3 += "  |  ";
str4 += "  |  ";
str5 += "  |  ";
break;
case '2':
str1 += " ---- ";
str2 += "   | ";
str3 += " ---- ";
str4 += " |   ";
str5 += " ---- ";
break;
case '3':
str1 += " ---- ";
str2 += "   | ";
str3 += " ---- ";
str4 += "   | ";
str5 += " ---- ";
break;
case '4':
str1 += " |  | ";
str2 += " |  | ";
str3 += " ---- ";
str4 += "   | ";
str5 += "   | ";
break;
case '5':
str1 += " ---- ";
str2 += " |   ";
str3 += " ---- ";
str4 += "   | ";
str5 += " ---- ";
break;
case '6':
str1 += " ---- ";
str2 += " |   ";
str3 += " ---- ";
str4 += " |  | ";
str5 += " ---- ";
break;
case '7':
str1 += " ----  ";
str2 += "    | ";
str3 += "    | ";
str4 += "    | ";
str5 += "    | ";
break;
case '8':
str1 += " ---- ";
str2 += " |  | ";
str3 += " ---- ";
str4 += " |  | ";
str5 += " ---- ";
break;
case '9':
str1 += " ---- ";
str2 += " |  | ";
str3 += " ---- ";
str4 += "   | ";
str5 += " ---- ";
break;
}
}
if(i < (array.length-1)) {
str1 += "  ";
str2 += " . ";
str3 += "  ";
str4 += " . ";
str5 += "  ";
}
}
strArrays[0] = str1;
strArrays[1] = str2;
strArrays[2] = str3;
strArrays[3] = str4;
strArrays[4] = str5;
return strArrays;
}

}

打印出来的样式：

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