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Questions and Answers
What does the first line 'public class Hello' indicate in a Java program?
What does the first line 'public class Hello' indicate in a Java program?
- It denotes the beginning of the program execution
- It defines the name of the class as 'Hello' (correct)
- It marks the end of the program
- It specifies the main method of the program
What is the purpose of enclosing everything within curly brackets in a Java class?
What is the purpose of enclosing everything within curly brackets in a Java class?
- To indicate the beginning and end of the program
- To specify the accessibility of the program
- To define the main method
- To contain the class members and methods (correct)
What is the significance of having a method called 'main' in a Java application?
What is the significance of having a method called 'main' in a Java application?
- It contains a collection of programming instructions for a specific task
- It specifies the accessibility of the application
- It indicates the end of execution of the program
- It marks the beginning of program execution (correct)
What does 'public' signify in the method 'public static void main'?
What does 'public' signify in the method 'public static void main'?
Why is it essential for every class name in Java to start with a capital letter?
Why is it essential for every class name in Java to start with a capital letter?
What does a Java application consist of?
What does a Java application consist of?
What is the purpose of the semi-colon at the end of a Java instruction?
What is the purpose of the semi-colon at the end of a Java instruction?
What is the effect of using the 'println' statement compared to 'print' in Java?
What is the effect of using the 'println' statement compared to 'print' in Java?
What type of error is detected by the compiler in Java?
What type of error is detected by the compiler in Java?
What does a sequence of characters enclosed in double quotes represent in Java?
What does a sequence of characters enclosed in double quotes represent in Java?
What symbol is used to write one-line comments in Java?
What symbol is used to write one-line comments in Java?
What is the purpose of using 'System.out.print' in Java?
What is the purpose of using 'System.out.print' in Java?
What is the purpose of methods in Java?
What is the purpose of methods in Java?
What must the code file name be when saving programs in Java?
What must the code file name be when saving programs in Java?
What is the purpose of using 'System.out.println' instead of 'System.out.print' in Java?
What is the purpose of using 'System.out.println' instead of 'System.out.print' in Java?
What do comments convey in a program?
What do comments convey in a program?
What extension should be used for saving a program as a Java program?
What extension should be used for saving a program as a Java program?
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