Loop statements in java are an essential part of programming and play a significant role in controlling the flow of execution in a program. Java provides several types of loop statements that enable developers to execute a set of statements multiple times based on certain conditions.
Table of Contents
Loop Statements
For Loop
The for loop is one of the most commonly used loop statements in Java. It executes a set of statements repeatedly for a specified number of times. The for loop has a well-defined structure, which makes it easy to use and understand.
public class Main {
public static void main(String[] args) {
for (int i = 1; i <= 10; i++) {
System.out.println(i);
}
}
} Output
While Loop
The while loop is another type of loop statement in Java. It executes a set of statements repeatedly as long as a specified condition is true. The structure of the while loop is similar to the for loop, but it does not have the increment/decrement section.
public class Main {
public static void main(String[] args) {
int i = 1;
while (i <= 10) {
System.out.println(i);
i++;
}
}
} Output
Do-While Loop
The do-while loop is similar to the while loop, but it executes the statements at least once before checking the condition. This means that the statements inside the loop are executed at least once, even if the condition is false.
public class Main {
public static void main(String[] args) {
int i = 1;
do {
System.out.println(i);
i++;
} while (i <= 10);
}
} Output
Advantages of Loop Statements in Java
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The for loop is useful for a well-defined and controlled number of iterations. This makes it easy to use and understand, especially when the number of iterations is known beforehand.
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The while loop is useful for an indefinite number of iterations. This makes it a flexible option when the number of iterations is not known beforehand.
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The do-while loop is useful when you want to ensure that the loop is executed at least once. This makes it a good option when you want to make sure the loop is executed at least once, even if the condition is false.
Conclusion
Loop statements play an important role in programming and allow developers to control the flow of execution in their programs. Understanding the different types of loop statements and their syntax, usage, and output is essential for any Java programmer. With the help of these loop statements, you can write efficient and effective programs in Java.
