Apr 20, 2012 · Java (before version 7) does not support String in switch/case. But you can achieve the desired result by using an enum. private enum Fruit { apple, carrot, mango, orange; } String value; // assume input Fruit fruit = Fruit.valueOf(value); // surround with try/catch switch(fruit) { case apple: method1; break; case carrot: method2; break; // etc...

Jul 11, 2022 · Given string str, the task is to write a Java program to swap the pairs of characters of a string. If the string contains an odd number of characters then the last character remains as it is. Examples: Input: str = “Java†Output: aJav Explanation: The given string contains even number of characters.

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.

Jul 19, 2012 · Condition matching is not allowed in java in switch statements. What you can do here is create an enum of your string literals, and using that enum create a helper function which returns the matched enum literal. Using that value of enum returned, you can easily apply switch case. For example:

Jan 12, 2012 · Here is an example how to use strings in switch case... option = scanner.nextLine(); switch (option) { case "1": System.out.println("Hello");break; case "2": break; case "3": break; case "4": break; case "5": break; default: System.out.println("Invalid option.

Apr 11, 2025 · Starting from Java 7, switch statements can use String type values. They can also handle wrapper classes like Integer, Short, Byte, Long. Java switch expression must be of byte, short, int, long (with its Wrapper type), enums and string. Beginning with JDK7, it also works with enumerated types (Enums in java), the String class, and Wrapper classes.

May 16, 2019 · Learn how to use strings in switch case statements, string switch case null and case insensitive check.

Aug 4, 2022 · Java switch case String make code more readable by removing the multiple if-else-if chained conditions. Java switch case String is case sensitive, the output of example confirms it. Java Switch case uses String.equals () method to compare the passed value with case values, so make sure to add a NULL check to avoid NullPointerException.

Sep 28, 2023 · In this detailed guide, we’ll dive into the world of the switch statement in Java for strings. We’ll explore its syntax, usage examples, best practices, and potential pitfalls. Before delving into working with strings, let’s refresh our understanding of how …

Jun 11, 2024 · Below we’ll give some code examples to demonstrate the use of the switch statement, the role of the break statement, the requirements for the switch argument/case values and the comparison of Strings in a switch statement.