Java Tutorials

Switch Statement Java: How to Use It

Conditional statements are a common feature in all programming languages. We use conditional statements to control the flow of programs. In Java, if…else statements are used to control program flow based on a certain set of conditions. Additionally, Java offers…

How to Use indexOf in Java

In programming, there are scenarios where you may want to retrieve the index of a particular character value or substring from within a larger string. For instance, you may own a fruit stand and want to know where Mango appears…

How to Throw an Exception in Java

Exceptions are unexpected events that occur during program execution. When your code encounters an exception, the flow of your program will be terminated. It’s important that you handle exceptions correctly when you’re coding in Java. Otherwise, your code may terminate…

How to Use Java Methods

In object-oriented programming, methods are blocks of code that perform a specific task. For instance, a method could check whether a customer has enough money in their bank account to make a purchase or sort the contents of a list…

How to Use Break in Java

Java for loops and while loops are used to automate similar tasks. Often, when you’re working with these loops, you may want to exit a loop when a particular condition is met. That’s where the Java break statement comes in.…

How to Use If…Else Statements in Java

When you’re programming, it’s common to write code that should only be executed when a certain condition is met. For instance, you may want an order to be placed on your e-commerce site only if a user has submitted their…

How to Use for and for each Loops in Java

Loops in programming are used to automate similar tasks that will be repeated multiple times. For instance, if you’re creating a program that merges together the price and name of all lunchtime menu items for a restaurant, you may want…

Java toUpperCase and toLowerCase

Strings are a built-in data type in Java used to store text. When you’re working with a string, you may want to convert the case of the string to all-uppercase or to all-lowercase. For instance, if you’re building an app…

How to Convert a Java String to Char Array

Often, when you’re working with a string, you will want to convert it to an array of characters. For instance, if you’re building an app that stores a list of student grades, you may want to convert those grades from…

How to Use the Java continue Statement

In Java, for and while loops are used to automate and repeat tasks efficiently. However, there may be an occasion where you want to skip part of a loop and allow the program to continue executing the loop. For instance,…

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