Exam 2: Java Fundamentals

To compile a program named First,use the following command

Given the declaration double r;,which of the following statements is invalid?

Which Scanner class method reads an int?

What is the result of the following expression? 10 + 5 * 3 - 20

Programming style includes techniques for consistently putting spaces and indentation in a program so visual cues are created.

Which of the following does not describe a valid comment in Java?

Which of the following is a valid Java statement?

What will be displayed after the following statements have been executed? final double x; X = 54.3; System.out.println("x = " + x );

This is a value that is written into the code of a program.

All Java statements end with semicolons.

Variables of the boolean data type are useful for

The ___________ is normally considered the standard output and standard input devices,and usually refer to the monitor and keyboard.

Which Scanner class method reads a String?

What would be printed out as a result of the following code? System.out.println("The quick brown fox" + "jumped over the \ n" "slow moving hen.");

Which of the following is valid?

Although the dollar sign is a legal identifier character,you should not use it because it is normally used for special purposes.

In Java the variable named one is the same as the variable named One.

What will be displayed as a result of executing the following code? int x = 5,y = 20; X += 32; Y /= 4; System.out.println("x = " + x + ",y = " + y);

Which of the following statements correctly creates a Scanner object for keyboard input?

What will be displayed as a result of executing the following code? int x = 6; String msg = "I am enjoying this class."; String msg1 = msg.toUpperCase(); String msg2 = msg.toLowerCase(); Char ltr = msg.charAt(x); Int strSize = msg.length(); System.out.println(msg); System.out.println(msg1); System.out.println(msg2); System.out.println("Character at index x = " + Ltr); System.out.println("msg has " + strSize + "characters.");