1. Which of the following strings can be used as mode strings for creating a RandomAccessFile object? (A) "r" (B) "w" (C) "rw" (D) "wr" (E) "0"   (C) & (D)   (A), (B) & (C)   (A), (B), (C) & (E)   (A) & (C)   (B), (D) & (E)   Hint Half-n-half Clue   2. Which of the following statements are true? (A) Unicode characters are all 16 bits. (B) UTF characters are all 24 bits. (C) Reader class has methods that can read integers and floats. (D) File class may be used to rename a file. (E) DataOutputStream objects are used to write primitive data to a file.   (A), (D) & (E)   (A) & (D)   (A), (B) & (D)   (A), (C), (D) & (E)   (B), (D) & (E)   Half-n-half Clue   3. What does the following line of code do? Textfield text = new Textfield(10);   Creates the object text and initializes it with the value 10.   The code is illegal.   Creates text object that can hold 10 columns of text.   Creates text object that can hold 10 rows of text.   Half-n-half Clue   4. Which of the following applet tags is legal to embed an applet class named Test into a Web page?   < applet class = Test width = 200 height = 100>   < applet> code = Test.class width = 200 height = 100>   < applet code = Test.class width = 200 height = 100   < applet code = Test.class width = 200 height = 100>   < applet param = Test.class width = 200 height = 100>   Half-n-half Clue   5. Which of the following methods can be used to draw the outline of a square within a java.awt.Component object? (A) fillRect() (B) drawLine() (C) drawRect() (D) drawString() (E) drawPolygon()   (A), (B), (C) & (E)   (B) & (C)   (C), (D) & (E)   (A), (B) & (C)   (B), (C) & (E)   Half-n-half Clue   6. DataInput is   an abstract class defined in java.io.   an interface that defines methods to open files.   a class we can use to read primitive data types.   an interface that defines methods to read primitive data types.   Half-n-half Clue   7. Which are the valid ways to create DataInputStream streams?   new DataInputStream(new FileInputStream("in.dat");   new DataInputStream("in.dat")   new DataInputStream(new File("in.dat"));   new DataInputStream("in.dat", "r");   new DataInputStream();   Half-n-half Clue