By successfully ____ a network, we have proof that the network hardware and software is operating correctly.
A. PINGing
B. ARPing
C. TRACKing
D. RINGing
Answer: A
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When you want to read data from a text file, you create a file object using the ____________.
a. Stream Reader class b. Text Reader class c. Buffered Reader class d. Input Reader class
Analyze the following code:
``` class Test { private double i; public Test(double i) { this.t(); this.i = i; } public Test() { System.out.println("Default constructor"); this(1); } public void t() { System.out.println("Invoking t"); } } ``` a. this.t() may be replaced by t(). b. this.i may be replaced by i. c. this(1) must be called before System.out.println("Default constructor"). d. this(1) must be replaced by this(1.0).
What is the purpose of Java’s wrapper classes?
What will be an ideal response?
To select a placeholder for deletion, click its ____________________ to change it to a solid line.
Fill in the blank(s) with the appropriate word(s).