线性查找
public class T05 {
public static void main(String[] args) {
int[]arr=new int[]{1,2,3,4,5,6,7,8,9};
for(int i=0;i< arr.length;i++){
System.out.print(arr[i]+"\t");
}
System.out.println();
for(int i=0;i< arr.length;i++){
if(i< arr.length-1-i){
int a=arr[i];
arr[i]=arr[arr.length-1-i];
arr[arr.length-1-i]=a;
}
}
for(int i=0;i< arr.length;i++){
System.out.print(arr[i]+"\t");
}
}
}
