Exam 3: Introduction to Objects and Input/output

Given int num; the value of num is directly stored in its memory space.

There are ____ type(s) of methods in a class.

The new operator is used to create an int variable.

The statement System.exit(0); is found at the end of every working Java program.

Suppose z = 1834.762. The output of the statementSystem.out.printf("%.1f", z);is 1834.800.

An expression such as str.length(); is an example of a(n) ____.

The classes Integer, Float, and Double are called wrapper classes.

Which statement instructs a program to run the garbage collector?

Which of the following statements would store input in name?

String sentence; String str1, str2, str3, str4; Int length1;sentence = "First exam is on Monday.";str1 = sentence.substring(6, 12); Str2 = str1.substring(0, 4); Str3 = sentence.replace('i', '#'); Str4 = sentence.indexOf("on");length1 = sentence.length();Based on the code above, what is the value of str4?

The dot (.) operator is also called the member specific operator.

In a format specifier, the option width specifies the maximum number of characters to be written to the output.

In a string, the index (position) of the first character is 1.

If length denotes the length of a nonnull string, then length - 1 gives the index of the last character in the string.

What is the value of the following statement? Math.pow(3,4)

In Java, all variables declared using a class are ____.

When writing output to a file, if the file is not closed at the end of the program, you may not be able to view your output properly.

What will most probably happen if you omit the dot operator when accessing a method?

Which of the following is the member access operator?

Suppose that you have the declaration:int num = 94; Double x = 73.92; String str = "Programming";What is the output of the following statements?System.out.println("123456789012345678901234567890"); System.out.printf("%5d%6.2f %15s%n", num, x, str);