Java arrays.aslist Issues

1. Questions

 Public Static void aslist () {        System.out.println (arrays.aslist (new string[] {"A", "B" });        System.out.println (Arrays.aslist (new integer[] {1, 2 }));        System.out.println (Arrays.aslist (newint[] {1, 2 }));  

        System.out.println (Arrays.aslist (new object[] {new int[] {1, 2}});

       System.out.println (arrays.aslist (new string[] {"A", "B"}, "C"));

The right way Apache Common Lang

      System.out.println (Arrays.aslist (Arrayutils.toobject (new int[] {1, 2}));

}

[A, b]
[1, 2]
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[[[Email protected]]

[[Ljava.lang.string;@2077d4de, C]

[1, 2]

Because the Java language specification calls for calling a method that is declared as Foo (t ... t), such as foo (new T[]{bar,baz}) is equivalent to a call such as Foo (Bar,baz). In the Arrays.aslist method, T is the parameter type,

So it must be an object type, but int is not, and int[] is. Arrays.aslist, as a negative case, tells us why we should be very careful when using the variable parameter design API for Java.

Reference:

Http://www.importnew.com/14996.html

Java arrays.aslist Issues