Frequent question: Can we use flag in Java?

What is use of flag variable in Java?

A flag variable, it is a variable you define to have one value until some condition is true or false in which case you change the variable’s value. It is a variable you can use to control the flow of a function or statement, allowing you to check for certain conditions while your function executing.

What is string flag in Java?

The Flags class represents the set of flags on a Message. Flags are composed of predefined system flags, and user defined flags. A System flag is represented by the Flags. Flag inner class. A User defined flag is represented as a String.

What is the use of flag?

Flags originally were used mainly in warfare, and to some extent they have remained insignia of leadership, serving for the identification of friend or foe and as rallying points. They are now also extensively employed for signaling, for decoration, and for display.

Which flag is not used in programming?

Discussion Forum

Que. Which flag of the 8085’s flag register is not accessible to programmer directly?
b. Carry flag
c. Auxiliary carry flag
d. Parity flag
Answer:Auxiliary carry flag
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What is Flag in coding?

In programming, a flag is a predefined bit or bit sequence that holds a binary value. Typically, a program uses a flag to remember something or to leave a sign for another program.

Why do we use Boolean flag in Java?

 A Flag is a boolean variable that signals when some condition exists in a program.  When a flag is set to true, it means some condition exists  When a flag is set to false, it means some condition does not exist.

What is the use of flag 0?

Along with a carry flag, a sign flag and an overflow flag, the zero flag is used to check the result of an arithmetic operation, including bitwise logical instructions. It is set to 1, or true, if an arithmetic result is zero, and reset otherwise.

Why do we use static block in Java?

The static block is a block of statement inside a Java class that will be executed when a class is first loaded into the JVM. A static block helps to initialize the static data members, just like constructors help to initialize instance members. Following program is the example of java static block.

What is difference between Boolean and flag?

Returning a bool locks you in now, whereas using flags allows you greater flexibility in the future. So what if you never need more than two values in the future.

What is Boolean in Java?

In Java, the boolean keyword is a primitive data type. It is used to store only two possible values, either true or false. … The boolean keyword is used with variables and methods. Its default value is false. It is generally associated with conditional statements.

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How do you use a flag in coding?

A flag variable is usually given two values 0 and 1. So, its used as a Boolean variable where the result toggles between 0 (False) and 1 (True) or as used by the programmer. Some prefer flag=1 and change it to flag=0 in the program to perform an action. e.g.

Who invented flag?

While the flag has undergone changes in the past decades, its basic framework is credited to Pingali Venkayya. On India’s 73rd Independence Day, ThePrint looks back at the life of Venkayya and his contribution to India’s national flag.

Who created flags?

Elizabeth “Betsy” Ross is famous for making the first American flag. But is the account of her contribution to the American Revolution simply a legend? Although she purportedly sewed the first flag in 1776, Ross wasn’t credited with this work during her lifetime.

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