Java 9 - sorting

import java.util.*;
class labtask9 
{ 
static int a[],n,i,j,t;
 public static void main(String[] args) 
 { 
 Scanner sc=new Scanner(System.in);
 System.out.println("Enter n");
 int n=sc.nextInt();
 int a[]=new int[n];
 System.out.println("Enter "+n+" elements ");
 for(i=0;i<n;i++)
 { 
 a[i]=sc.nextInt();
 } 
 for(int i=0;i<n;i++)
 { 
 for(int j=i+1;j<n;j++)
 { 
 if (a[i]>a[j]) 
 {
   int t=a[i];
 a[i]=a[j];
 a[j]=t;
 } 
 } 
 } 
 for(i=0;i<n;i++)
 { 
 System.out.print(a[i]+" "); 
 } 
 } 
}