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. … However, the if statement does not require a semicolon.

Why do you need semicolons in Java?

Semicolon is a part of syntax in Java. It shows the compiler where an instruction ends and where the next instruction begins. Semicolon allows the java program to be written in one line or multiple lines, by letting the compiler know where to end the instructions.

Which statement does not require a semicolon?

Control statements ( if , do , while , switch , etc.) do not need a semicolon after them, except for do … while , must have a semicolon after it.

Which loops need a semicolon?

6 Answers. Semicolon is a legitimate statement called null statement * that means “do nothing”. Since the for loop executes a single operation (which could be a block enclosed in {} ) semicolon is treated as the body of the loop, resulting in the behavior that you observed.

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When should semicolons not be used?

Do not use a semicolon when a dependent clause comes before an independent clause. As we have stated above, semicolons can be used to join two complete sentences. Since a dependent clause does not express a complete thought, it is not a complete sentence and cannot be joined to your independent clause by a semicolon.

Which method is end with semicolon?

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

What are some examples of semicolons?

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.

What happens if we put semicolon after if statement?

Which basically means that the stuff will be done whether a equals b or not, and the if statement has no point whatsoever.

Why semicolon is not used in Python?

Python uses the ; as a separator, not a terminator. You can also use them at the end of a line, which makes them look like a statement terminator, but this is legal only because blank statements are legal in Python — a line that contains a semicolon at the end is two statements, the second one blank.

What does semicolon mean in Python?

A semicolon in Python denotes separation, rather than termination. It allows you to write multiple statements on the same line. This syntax also makes it legal to put a semicolon at the end of a single statement. So, it’s actually two statements where the second one is empty.

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What is loop example?

A loop is used for executing a block of statements repeatedly until a particular condition is satisfied. For example, when you are displaying number from 1 to 100 you may want set the value of a variable to 1 and display it 100 times, increasing its value by 1 on each loop iteration.

What happens if we put semicolon after for loop in Java?

If you place semicolon after a for loop then it is technically correct syntax. Because it is considered as an empty statement – that means nothing to execute. for(i=0;i<n;i++); An empty statement executed up to n times.

What happens if we put semicolon after while loop in Java?

while(j>10); Adding semi-colon for while-loop ends the line. The code in the curly braces executes irrespective of the condition is true or false. Therefore adding the semicolon executes the empty statements without any errors.

What is the main purpose of a semicolon?

A semicolon has two general uses: to clarify a series and to indicate two closely related sentences. Series—If one or more elements in a series contain a comma, use semicolons to separate them. Include a semicolon before the final conjunction.

Can I put a semicolon before as?

Rule 2. Use a semicolon before such words and terms as namely, however, therefore, that is, i.e., for example, e.g., for instance, etc., when they introduce a complete sentence. It is also preferable to use a comma after these words and terms.

Can you use a colon and semicolon in the same sentence?

Colons and semicolons can be used in the same sentence, but they are each used for different purposes. … In this example, the colon is used to introduce the cities. Semicolons are used to separate each city and state from the next city and state in the list.

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