Exam 2: Basic Elements of Java

The == characters are a special symbol in Java.

A value such as 'd' is called a character constant.

The declaration int a, b, c; is equivalent to which of the following?

When evaluating a mixed expression, all integer operands are converted to floating-point numbers with the decimal part of zero.

Operators of the same precedence are evaluated from right to left.

Suppose console is a Scanner object initialized with the standard input device and feet and inches are int variables. Consider the following statements: feet = console.nextInt(); inches = console.nextInt(); These statements require the value of feet and inches to be input on separate lines.

The expression (double)(5 + 4) evaluates to ____.

The number of significant digits in a double variable is up to 15.

The length of the string "first java program" is:

The data type float is a floating-point data type.

Which of the following is a valid Java identifier?

Suppose that index is an int variable. The statement index = index + 1; is equivalent to index++;

An identifier can be any sequence of characters and integers.

When a value of one data type is automatically changed to another data type, an implicit type coercion has occurred.

Operators that have two operands are called ____.

The null string contains only the blank character.

Which of the following is the newline character?

In Java, a period is used to terminate a statement.

What is the output of the following statement? System.out.println("Welcome \n Home");

Both System.out.println and System.out.print can be used to output a string on the standard output device.