java level one

What is programming?

• Programming is the process of creating instructions for a computer to execute.
• Programming is the process of designing buildings and structures.
• Programming is a type of exercise routine.
• Programming is a form of cooking food.

What is binary (machine language)?

• A high-level programming language

• A language used for web development

• A low-level language that uses 0s and 1s to represent instructions and data

• A language used for database management

What are variables in programming?

• A way to display output on the screen
• A method for organizing code
• A type of function in programming
• Containers for storing values

How do you declare a variable in Java?

• Declaring a variable is not possible in Java.
• By using the syntax: data type variableName;

• Using the syntax: var variableName;
• By using the syntax: variableName = value;

What is a data type in programming?

• A type of software application
• A type of computer hardware
• A classification that specifies which type of value a variable can hold.
• A type of internet connection

How do you concatenate strings ?

• Using the '/' operator
• Using the '*' operator
• Using the '+' operator
• Using the '-' operator

How write comment in java?

• // for single-line comments or /* */ for multi-line comments
• /* for single-line comments or // for multi-line comments
• /* for single-line comments or // for multi-line comments
• ## for single-line comments or for multi-line comments

How do you print in Java ?

• Console.log()
• print()
• System.out.println()
• System.print()

How do you read input from the user in java?

• Use the FileReader class to read input from the user.
• Use the BufferedReader class to read input from the user.
• Use the Console class to read input from the user.
• Use the Scanner class to read input from the user.

Which arithmetic operators ?

• and, or, not, xor
• >, <, =, !
• +, -, *, /
• +, -, *, %