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import java.util.Date;
import java.util.Random;
public class BubbleSort {
public static void main(String args[])
{
int len = 40;
Date date = new Date();
Random random = new Random(date.getSeconds());
int data[]=new int[len];
for(int i = 0; i < len; i++)
{
data[i]=(int)(random.nextFloat()*100+1);
}
System.out.println("Select sort:");
show(data);
bubbleSort(data);
show(data);
}
/*
* ðÅÝÅÅÐò
*/
private static void bubbleSort(int[] data)
{
int len=data.length;
for(int i=len; i>=1; i--)
{
for(int j=0; j<i-1 ; j++)
{
if(data[j+1]<data[j]){
int temp=data[j+1];
data[j+1]=data[j];
data[j]=temp;
}
}
}
}
private static void show(int[] data)
{
System.out.println("========================");
for(int i = 0; i < data.length; i++)
{
System.out.print(data[i] + " ");
}
System.out.println();
System.out.println("========================");
}
}


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Java SE Òì³£

package demo;
class TestA{
 public int devide(int x,int y) throws ArithmeticException , DevideByMinusException{
  if(y<0)
   throw new DevideByMinusException("±»³ýÊýΪ¸º",y);
  int result=x/y;
  return result;
 }
}
public class TestE ......

JavaÖÐʹÓÃBigDecimalʵÏÖ¾«È·ÉáÎåÈë¼°¹¤³ÌÔËËã

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JavaÑé֤ʱ¼ä¶ÎÎÊÌâ

  ÔÚ´¦Àí¼à²âÊý¾Ýʵʱ¼Èëʱ,ÐèÒªÌṩµ±Ç°°à´ÎÐÅÏ¢{´ó°×°à,Сҹ°à,´óÒ¹°à}£¬°à´ÎÐÅÏ¢ÊǸù¾Ý¸ø¶¨Ê±¼ä¶Î½øÐÐÉ趨ÀàËÆ{{"8:00","16:00"},{"16:00","00:00"},{"00:00","8:00"}}
  ´¦Àí°ì·¨
   · È¡µ±Ç°Ê±¼ä¡¢×ª»»ÑéÖ¤Æðʼ¡¢½áÊøÊ±¼ä½øÐбȽϡ£
  Ïà¹Ø´úÂë
 /**
* ʱ¼ä¶Î²âÊÔ
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ÓÃjavaʵÏֵĵü´úºÍµÝ¹é²åÈëÅÅÐò

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package sort;
import java.util.Date;
import java.util.Random;
/*
* ²åÈëÅÅÐò
*/
public class InsertSort{
public static void main(String args[])
{
int len = 20;
Date date = new Date();
Random random = new Random(date.getSeconds()); ......
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