The case value can have a default label which is optional.If a break statement is not found, it executes the next case. When control reaches to the break statement, it jumps the control after the switch expression. Each case statement can have a break statement which is optional.The Java switch expression must be of byte, short, int, long (with its Wrapper type), enums and string. In the Java programming language, you can use a switch statement to choose between a fixed number of alternatives. switch-case was also affected by the change in string to number comparison. In case of duplicate value, it renders compile-time error. The switch statement compares the String object in its expression with the expressions associated with each case label as if it were using the String.equals. The switch statement executes line by line (actually, statement by statement). If the input string is null, switch-case will throw NullPointerException. The switch case matching is case sensitive, so java will not match for input string Java. Java switch case with string is more readable than the multiple if-else if-else blocks. Pick one argument which you want and use it as the String in the switch. Important Points for String in Switch Case. The case value must be literal or constant. You can use switch with String also, however youre trying to use a String array. The case value must be of switch expression type only.There can be one or N number of case values for a switch expression.Object game 'Hockey' // It is not allowed String game 'Hockey' // It is OK. In order to use string, you need to consider the following points: It must be only string object. it support string as well. In Java 7, Java allows you to use string objects in the expression of switch statement. In other words, the switch statement tests the equality of a variable against multiple values. The String in Switch Case in Java - The introduction of Java 7 enhanced the switch case i.e. We can also use four wrapper classes such as Byte, Short, Integer, and Long in the. Since Java 7, you can use strings in the switch statement. From Java 7 onwards, we can use string in the switch statement. The switch statement works with byte, short, int, long, enum types, String and some wrapper types like Byte, Short, Int, and Long. There's no need to preemptively save the result in a variable either.The Java switch statement executes one statement from multiple conditions. Without having to worry about the function being re-evaluated for every case. I think this fact needs a little bit more attention, so here's an example: So have a null check in place before writing the switch-case code. The difference between a series of if statements and the switch statement is that the expression you're comparing with, is evaluated only once in a switch statement. The switch case matching is case sensitive, so java will not match for input string Java. In our example of using Strings in Switch case, we are accepting a String command from console, and passing it. This is listed in the documentation above, but it's a bit tucked away between the paragraphs. Java Program to use String in Switch Statement. Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search
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