The do keyword in java programming language
We will learn about the do keyword in java programming language
The do keyword is used to implement do-while loop in Java. It is used for execution of the block of statement at least one time in Java. When the boolean condition is executed, if the condition is true, the loop executes again. But, if boolean condition is false, the loop exits.
Remarks
- the body of do loop is always executed at least ones whether the condition specified with the while keyword is true or false
- The semicolon after the condition expressions is always required
- The do keyword may not used as an identifier
- you cannot declare a variable or class with this name of Java program
Syntax
Syntax of do statement
do
{
<statements>
}
while(condition)
The do loop iterates a block of statements with the while loop
do{
i++;
}while(condition) // condition is test i<MaxNum
Example
class DoKeywordinJava{
public static void main(String args[]){
int i=0;
do{
System.out.println("i value is :"+i);
i++;
}while(i<10);
}
}
When the above code is compiled and executed, it will produce the following results
i value is :0 i value is :1 i value is :2 i value is :3 i value is :4 i value is :5 i value is :6 i value is :7 i value is :8 i value is :9
There are other Java language keywords that are similar to this keyword
static keyword in Java language
extends keyword in Java language
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