default: System.out.println("Unknown Size); Note: The Java switch statement only works with: Primitive data types: byte, short, char, and int Enumerated types String Class Wrapper Classes: Character, Byte, Short, and Integer. Also Read: Implementation of switch...case on Strings Before...
Now let’s discuss the allowed types ofswitchargument andcasevalues, the requirements for them and how theswitchstatement works with Strings. 4.1. Data Types We can’t compare all the types of objects and primitives in theswitchstatement.Aswitchworks only with four primitives and their wrappers a...
Stringtype=switch(obj){caseIntegeri:yield"整数";caseStrings:yield"字符串";default:yield"未知类型"...
publicclassSwitchStatement{publicstaticvoidmain(String[]args){System.out.println("Monday is : "+isWeekDay(Day.TUE));System.out.println("Monday is : "+isWeekDay(Day.SUN));}publicstaticBooleanisWeekDay(Dayday){Booleanresult=false;switch(day){caseMON:result=true;break;caseTUE:result=true;break...
This is not possible with Strings and thus is a drawback of the proposal; however, Case 2 can always be used in place of Case 1. This drawback is not important enough to make the String switch statement undesirable.Case 2: The hash-lookup switch statement...
Understanding this ‘fall through’ behavior is crucial when working with switch statements in Java, as it can lead to unexpected results if not handled correctly. Applying Java Switch Statement in Real-World Projects As we’ve seen, the switch statement is a powerful tool for controlling the fl...
Java Switch Statements Instead of writingmanyif..elsestatements, you can use theswitchstatement. Theswitchstatement selects one of many code blocks to be executed: SyntaxGet your own Java Server switch(expression){casex:// code blockbreak;casey:// code blockbreak;default:// code block}...
Before Java 7, the switch statement only supported primitives and enumerated types. As of Java 7, it also supports Strings. Let’s explore a simple example using Java’s switch statement: int number = 3; String description; switch (number) { case 0: description = "Zero"; break; case 1...
at com.journaldev.util.SwitchStringExample.main(SwitchStringExample.java:10) Make sure to use java switch case String only when you know that it will be used with Java 7 else it will throw Exception. Thats all for Java switch case String example.: We can use...
3. Switch Examples 3.1. Betterinstanceofchecking with Switch Statements Traditionally, if we had to write a code that checks theinstance typeand perform some logic, it was the way: Traditional way of checking instance type Objecto;if(oinstanceofString){Strings=(String)o;String.format("String ...