sample_1.java

java课程的资料以及实验的代码

class Sample_1{
  public static void main(String args[]) {
    int lightspeed;
    long days;
    long seconds; 
    long distance;

    lightspeed = 186000;//光每秒的速度
    days = 365; //计算光年距离的天数

    seconds = days * 24 * 60 * 60; //将天数转化为秒

    distance = lightspeed * seconds; //计算距离

    System.out.println("一光年=" + distance + " 米。");
  }
}