![]() ![]() String should not be NULL: Ensure that the expression in any switch statement is not null while working with strings to prevent a NullPointerException from being thrown at run-time.Ĭase Sensitive Comparison: 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 method consequently, the comparison of String objects in switch statements is case sensitive.īetter than if-else: The Java compiler generates generally more efficient bytecode from switch statements that use String objects than from chained if-then-else statements. Therefore, it is best to switch on strings only in cases in which the controlling data is already in string form. Using a string-based switch is an improvement over using the equivalent sequence of if/else statements.Įxpensive operation: Switching on strings can be more expensive in term of execution than switching on primitive data types. StringBuilder Class in Java with Examplesīeginning with JDK 7, we can use a string literal/constant to control a switch statement, which is not possible in C/C++.The switch case matching is case sensitive, so java will not match. Ways to read input from console in Java Java switch case with string is more readable than the multiple if-else if-else blocks.Fast I/O in Java in Competitive Programming.Difference between Scanner and BufferReader Class in Java.Character Stream Vs Byte Stream in Java.Java Numeric Promotion in Conditional Expression.Comparison of Autoboxed Integer objects in Java.Does overloading work with Inheritance?.Referencing Subclass objects with Subclass vs Superclass reference.Object Serialization with Inheritance in Java.Parent and Child classes having same data member in Java.Java Object Creation of Inherited Class.Understanding Classes and Objects in Java.Why Java is not a purely Object-Oriented Language?.Instance Initialization Block (IIB) in Java.Assigning values to static final variables in Java.Static methods vs Instance methods in Java.Can we Overload or Override static methods in java ?.Understanding “static” in “public static void main” in Java.Access and Non Access Modifiers in Java.Association, Composition and Aggregation in Java.Dynamic Method Dispatch or Runtime Polymorphism in Java.How to swap or exchange objects in Java?.Currying Functions in Java with Examples.Using _ (underscore) as variable name in Java Case Sensitive Comparison: The switch statement compares the String object in its expression with the expressions associated with each case label as if it were.Decision Making in Java (if, if-else, switch, break, continue, jump).StringBuffer appendCodePoint() Method in Java with Examples.Using predefined class name as Class or Variable name in Java.How to run java class file which is in different directory?.Myth about the file name and class name in Java. ![]() Does JVM create object of Main class (the class with main())?.Beginning Java programming with Hello World Example. ![]()
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