Frequent question: What is the use of semicolon and comma in Java?

What is the use of semicolon and comma?

Semicolons used to replace commas

Use a semicolon to replace a comma when you use a coordinating conjunction to link independent clauses that already contain commas. The comma in this case makes these independent clauses difficult to read because of the other commas in the clauses: Incorrect: My dog is sick.

What is the difference between comma and semicolon in Java?

Answer: Commas are used especially as a mark of separation within the sentence; semicolons are used to connect independent clauses.

What does commas mean in Java?

In Java, the comma is a separator used to separate elements in a list in various contexts. It is not an operator and does not evaluate to the last element in the list.

Is semicolon necessary in Java?

Most, but not all, Java statements must end with a semicolon. The basic rule is that declaration and expression statements must end with a semicolon, but most other statement types do not.

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When to use a colon or a semicolon?

Colons and semicolons are two types of punctuation. Colons (:) are used in sentences to show that something is following, like a quotation, example, or list. Semicolons (;) are used to join two independent clauses, or two complete thoughts that could stand alone as complete sentences.

When should a semicolon be used examples?

Semicolons Separate Clauses

Here’s an example: I have a big test tomorrow; I can’t go out tonight. The two clauses in that sentence are separated by a semicolon and could be sentences on their own if you put a period between them instead: I have a big test tomorrow.

How do you tell the difference between a comma and a semicolon?

Comma is a punctuation mark indicating a pause between parts of a sentence or separating items in a list. Semicolon is a punctuation mark indicating a pause that is more pronounced than that indicated by a comma.

What is comma example?

Commas customarily indicate a brief pause; they’re not as final as periods. Rule 1. Use commas to separate words and word groups in a simple series of three or more items. Example: My estate goes to my husband, son, daughter-in-law, and nephew.

What is Colon used for in Java?

The double colon (::) operator, also known as method reference operator in Java, is used to call a method by referring to it with the help of its class directly. … The only difference it has from lambda expressions is that this uses direct reference to the method by name instead of providing a delegate to the method.

Does a semicolon mean or?

Most commonly, the semicolon is used between two independent clauses (i.e., clauses that could stand alone as separate sentences) when a coordinating conjunction (for, and, nor, but, or, yet, so) is omitted.

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What is comma operator what is its purpose?

The comma operator ( , ) evaluates each of its operands (from left to right) and returns the value of the last operand. This lets you create a compound expression in which multiple expressions are evaluated, with the compound expression’s final value being the value of the rightmost of its member expressions.

Is comma a Punctuator or separator in Java?

Punctuators are the punctuation signs used as special characters in Java. Comma, Braces, Curly Brackets, Square brackets are examples of Separators. Question mark, semi colon, dot are examples of Punctuators.

Does every line in a Java program end with semicolon?

; – Every statement in a Java program must end with a semicolon. If you forget the semicolon Eclipse will give you an error message, but it may not be exactly clear as to what the error is. Leaving out semicolons can sometime confuse the compiler, just like a “run-on sentence” can confuse you when trying to read it.

Is semicolon optional in Java?

3 Answers. Mostly yes, semicolons are required.

Which method is compulsory for Java program?

In the Java the main method is the entry point Whenever you execute a program in Java JVM searches for the main method and starts executing from it. The main method must be public, static, with return type void, and a String array as argument.

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