import java.util.Scanner;
public class Main{
public static int[] Test(int[] a){
int [] b =new int [1001];
for (int i =0;i<1001;i++){
b[i] = 0;
}
int len = a.length;
for (int i =0;i<len;i++)
{
b[a[i]] = 1;
}
return b;
}
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
while (sc.hasNext()){
int n = sc.nextInt();
int[] a =new int [n];
for (int i =0;i<n;i++){
a[i] = sc.nextInt();
}
int[] c = Test(a);
int len = c.length;
for (int i =0;i<len;i++){
if(c[i] == 1){
System.out.println(i);
}
}
}
}
}
第二个方法:
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Scanner; public class Main {
public static void main(String[] args) { Scanner scanner = new Scanner(System.in); do{
int n=0,m=0,i=0;
List<Integer> list=new ArrayList<Integer>();
n=scanner.nextInt();
for(i=0;i<n;i++)
{
m=scanner.nextInt();
if(!(list.contains(m))){
list.add(m);
}
}
Collections.sort(list);
Iterator<Integer> iterator=list.iterator();
while(iterator.hasNext()){
System.out.println(iterator.next());
} }while(!(scanner.hasNext("a")));
}
}
此方法存在漏洞: