private static void fun1(){
   
  int[]arr1={22,22,3,444,55};
  arr1=null;
  
  try {
   System.out.println(arr1[0]);
  }catch(Exception e) {
   System.out.println("一定会执行");
  }
  System.out.println("dddddd");
  }

private static void fun1(){
   
  int[]arr1={22,22,3,444,55};
  arr1=null;
  
  try {
   System.out.println(arr1[0]);
  }catch(Exception e) {
   System.out.println("一定会执行");
  }
  System.out.println("dddddd");
  }