List<Object[]> rows = new java.util.ArrayList<Object[]>();
 String a[]={"a1","a2"};
 String b[]={"b1","b3"};
 String b1[]={"bd1","bdd3"};
 String b2[]={"b2","a3"};
 String c[]={"a3","a2d"};
 rows.add(a);
 rows.add(b);
       rows.add(b2); 
       rows.add(b1);
 for (int i = 0; i < rows.size(); i++) {
     boolean flag=true;
 for (int j = 0; j < c.length; j++) {
if(rows.get(i)[1].equals(c[j])){
System.out.println("存在该数字！");
flag=false;
    break;   
  } 
 }
 if(flag){
System.out.println("不存在该数字！");
System.out.println(i);
  //rows.remove(i);
 }
   }
 System.out.println("----------------");
 int index[]={0,1,3};
 for (int i = 0; i < index.length; i++) {
 rows.remove(0);
}
 for (int i = 0; i < rows.size(); i++) {
System.out.println(rows.get(i)[0]+" "+rows.get(i)[1]);
}