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Which of the following would be the correct result from the following expression: 150 (in decimal) – 21 (in octal) + 101 (in binary) – E (in hexadecimal)?

\(150-17+5-14=124\)
5

Given the following code are the contents of itemArray and val after a call of mod(itemArray,val)?

int[] itemArray = {9, 8, 7, 6};
int val = 5;

public static void mod(int[] a, int value)
{
   for (int i=0; i < a.length; i++)
   {
      a[i] = i;
   }
   value = a[a.length-1];
}
把基本数据类型作为参数时,Java会创建变量值的副本。把数组或object作为参数时,Java则会创建其引用的副本。因而对于基本数据类型的修改不会影响原始值,而对于对象和数组的修改则会改变原始值。
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陈 欣

AADPS创始人

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