for(i=0; i<10;i++){
		int flag = 0;
		Random rand = new Random();
		num = rand.nextInt(10)+1;
	
			for( j=0;j<10;j++){
						
				if(mylist[j] == num){									
					i = i-1;
					flag=1;
					break;					
				}
		
			}
			
			if(flag == 0){
				mylist[i] = num;							
			}
					
		}

	Iterator iterator_1 = h_set.iterator();
	while (iterator_1.hasNext()){
		Map.Entry whole_map = (Map.Entry)iterator_1.next();
		System.out.print("ID: " + whole_map.getKey());
		System.out.print("   Score is :" +whole_map.getValue());
		System.out.println("   ");
		
	}

	for(i=0;i<10; i++){
	hmap.put(mylist[i],student_socre[i]) ;
	}

ID:1    Score is :78
ID:2    Score is :92
ID:3    Score is :83
ID:4    Score is :30
ID:5    Score is :77
ID:6    Score is :42
ID:7    Score is :53
ID:8    Score is :11
ID:9    Score is :42
ID:10    Score is :53