Difference between Break and Continue statement

Both the break and continue statements are used to change the fliw of executionin Java loops. However they differ in the way they work.

What is a break statement?

A break statement is used to terminate a loop. So the moment a break statement is encountered, control is transferred outside the loop even if condition part of the loop is true.

Consider the following code snippet:

for(int i = 0; i < 50;i++){if(i == 10)break;System.out.println("i="+i);}System.out.println("Outside loop");

This will print the following output:

i=0i=1i=2i=3i=4i=5i=6i=7i=8i=9Outside loop

So the loop executes till i reaches 10. Once the value of i is 10, the loop is exited.

In addition a break statement is also used in a switch block to skip further case statements the moment a match is encountered.

What is a continue statement?

Continue statement is used when you want to stop processing the remaining code in the body of a loop for a particular iteration but continue the loop for the next iteration.

Consider the following code snippet:

for(int i = 0; i < 10;i++){if(i % 2 == 0)continue;System.out.println("i="+i);}System.out.println("Outside loop");

This code snippet prints only the odd numbers from 1 to 10.  So it will print the following output:

i=1i=3i=5i=7i=9Outside loop

So if the number is even (determined by the if check for i % 2 == 0), the continue statement is executed which skips Sysout statement and continues at the top of the loop.

Comments

Post a Comment

Popular posts from this blog

How to use logging in SpringBoot with code samples

Image
In this article, we will learn how to use logging in SpringBoot. Introduction There are several Java logging frameworks like logback, log4j, and so on. Spring Boot supports out-of-the-box support for logback. Let us learn how to use logging in SpringBoot with logback. Step 1 – Create a New Maven Project Create a new Maven project. (Refer to  this  blog post). This will create a project in Eclipse as follows:   Step 2 – Add the Spring Boot Dependencies Add the spring-boot-starter-web dependency to the pom.xml . So, the pom.xml should look as follows: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.learnjava</groupId> <artifactId>learnjava-springboot-logging-example</artifactId> <version>0.0.1-SNAPSHOT&
Read more

Python While Loop with code samples

Much like a Java while loop, you can use a Python while loop to repeatedly execute a block of code as long as a condition is true. In this article, we will learn more about the Python while loop. Python While loop Syntax A while loop in Python has the following syntax: while <condition>: loop body The while keyword is followed by a condition. If the condition evaluates to true, the body of the loop is executed. Once the body of the loop is completed, the condition is checked again and this is repeated until the condition evaluates to false at which point the loop is exited. While loop Sample Code The following code demonstrates how you can use the while loop: num=10counter=1total=0while counter<=num: total += counter counter+=1print("sum of first 10 numbers is",total) This code adds the numbers from 1 to 10 and prints the sum. It uses a while loop to iterate from 1 to 10. The while loop checks the condition counter <= num and if so adds the current value of count
Read more

How to convert a List to a Set

In this blog post ,I will be showing you how you can convert a List to a Set. Consider the following code snippet: public class ListToSetDemo {public static void main(String[] args) {List<Integer> list = Arrays.asList(5,3,11,15,9);//Method 1Set<Integer> set = new HashSet<Integer>(list);System.out.println("Set is "+set);//method 2Set<Integer> set2 = new HashSet<Integer>();set2.addAll(list);System.out.println("Set is "+set2);}} This code demonstrates two ways to convert a List to a Set. Method 1 Here, we are creating a new HashSet . We are invoking the constructor that accepts a Collection object. Here, we are passing in the input list to this constructor.   Method 2 Here again, we are creating a new HashSet . However, we are using the default constructor. We are then invoking the addAll method and passing in the input list.   When you run this code, it will print the following output: Set is [3, 5, 9, 11, 15]Set is [3, 5, 9, 11, 15] No
Read more