java冒泡排序和快速排序代码

public class BubbleSorted{ 
public BubbleSorted(){ 
int a[]={49,38,65,97,76,13,27,49,78,34,12,64,5,4,62,99,98,54,56,17,18,23,34,15,35,25,53,51}; 
int temp=0; 
for(int i=0;i<a.length-1;i++){ 
for(int j=0;j<a.length-1-i;j++){ 
if(a[j]>a[j+1]){ 
temp=a[j]; 
a[j]=a[j+1]; 
a[j+1]=temp; 
} 
} 
} 
for(int i=0;i<a.length;i++) 
System.out.println(a[i]); 
} }

package com.test;

public class FindSorted{
public static void main(String[] args) {
int[] arr = new int[] { 12, 23, 34, 45, 56, 67, 77, 89, 90 };
System.out.println(search(arr, 12));
System.out.println(search(arr, 45));
System.out.println(search(arr, 67));
System.out.println(search(arr, 89));
System.out.println(search(arr, 99));
}
public static int search(int[] arr, int key) {
int start = 0;
int end = arr.length - 1;
while (start <= end) {
int middle = (start + end) / 2;
if (key < arr[middle]) {
end = middle - 1;
} else if (key > arr[middle]) {
start = middle + 1;
} else {
return middle;
}
}
return -1;
}
}