下面代码的输出结果是0。String s = new String();System.out.println(s.length());
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声明一个有5个int元素的数组,正确的是
A. int intArray = new int[5];
B. int intArray = new int(5);
C. int[] intArray = new int[5];
D. int[5] intArray = new int[5];
下面声明正确的是:
A. Object obj = new Object();
B. Object[] obj = new Object();
C. Object obj[] = new Object();
D. Object[] obj = new Object[];
下面代码的输出结果为:String[] numbers = {"one","two","three"};System.out.println(numbers[3] + " " + numbers[2] + " " + numbers[1]);
A. one two three
B. three two one
C. 产生编译错误
D. 运行时将抛出异常
下面代码的输出结果是:int[] testScores = {80, 63, 99, 87,100};System.out.println("Length: " + testScores.length);
A. Length: 4
B. Length: 5
C. Length: 100
D. 产生编译错误