答案是:public class C { public static void main(String args[ ]){ int i , j ; int a[ ] = { 2,1,4,8,9,5,3}; for ( i = 0 ; i < a.length-1; i ++ ) { int k = i; for ( j = i ; j < a.length ; j++ ) if ( a[j] int temp =a[i]; a[i] = a[k]; a[k] = temp; } for ( i =0 ; i System.out.print(a[i]+" "); System.out.println( ); }