Java Buzzwords

What is a variable in Java?

• A cooking utensil

• A container that holds a value

• A type of insect

• A musical instrument

How do you declare a variable in Java?

• variable_name = data_type;

• data_type variable_name;

• int variable_name;

• variable_name = new data_type();

What are the different data types in Java?

• float, long, short, byte, double

• if, else, switch, case, break

• true, false, null, void, this

• int, double, char, boolean, String, Arrays, Classes, etc.

What is the difference between int and double data types in Java?

• int data type is for boolean values, while double data type is for character values.

• int data type is for text values, while double data type is for numeric values.

• int data type is for floating point values, while double data type is for integer values.

• int data type is for integer values, while double data type is for floating point values.

What are the different operators in Java?

• Arithmetic, Assignment, Comparison, Logical, Bitwise, Ternary

• If, Else, Switch, Case

• Equals, Not Equals, Greater Than, Less Than

• Addition, Subtraction, Multiplication, Division

How do you use the '&&' operator in Java?

• To perform a logical AND operation between two boolean expressions.

• To concatenate two strings

• To check if two numbers are equal

• To perform addition between two numbers

What are control statements in Java?

• Statements used to control the temperature in a program

• Statements used to control the color scheme in a program

• Statements used to control the volume of sound in a program

• Statements used to control the flow of execution in a program

What is the use of the 'if' statement in Java?

• To make decisions in the program

• To play music

• To fly a plane

• To cook breakfast

How do you declare an array in Java?

• arrayName[] type;

• type[] arrayName;

• arrayName type();

• arrayName type[];

What is the purpose of arrays in Java?

• To perform mathematical calculations

• To store multiple values of the same data type in a single variable.

• To create graphical user interfaces

• To handle user input