题目内容

To return an array of long values from a method, use this as the return type for the method. 若要从方法返回long型数组，请将此作为方法的返回类型。

A. long
B. long[]
C. long[ARRAY_SIZE]
D. []long

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In memory, an array of String objects 在内存中，字符串对象的数组

A. consists of elements, each of which is a reference to a String object.由元素组成，每个元素都是一个字符串对象的引用。
B. is always implemented as a ragged array. 总是以不规则数组的形式实现
C. consists of elements, each of which is a String object. 由元素组成，每个元素是一个字符串对象
D. must be initialized when the array is declared. 必须在声明数组时初始化

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Given that String[] str has been initialized, to get a copy of str[0] with all characters converted to upper case, use the following statement: 给定字符串[]str已经被初始化，要获得str[0]的一个副本，并将所有字符转换为大写，请使用以下语句:

A. str.uppercase();
B. str[0].upperCase();
C. str.toUpperCase();
D. str[0].toUpperCase();

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已知数组array，其最后一个元素的下标是？

A. array. size
B. array. length-1
C. array. size-1
D. array．length

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现有：class Rectangle {public static void main(String[] args) {int[] x = { 1, 2, 3 };x[1] = (x[1] > 1) ? x[2] : 0;System.out.println(x[1]);}}结果为：

A. 3
B. 2
C. 1
D. 0

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To return an array of long values from a method, use this as the return type for the method. 若要从方法返回long型数组，请将此作为方法的返回类型。

A. long B. long[] C. long[ARRAY_SIZE] D. []long

In memory, an array of String objects 在内存中，字符串对象的数组

Given that String[] str has been initialized, to get a copy of str[0] with all characters converted to upper case, use the following statement: 给定字符串[]str已经被初始化，要获得str[0]的一个副本，并将所有字符转换为大写，请使用以下语句:

已知数组array，其最后一个元素的下标是？

现有：class Rectangle {public static void main(String[] args) {int[] x = { 1, 2, 3 };x[1] = (x[1] > 1) ? x[2] : 0;System.out.println(x[1]);}}结果为：

A. long
B. long[]
C. long[ARRAY_SIZE]
D. []long