JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to change case of a string characters in Java?


Description:

Below example shows how to convert the case of a given string. toUpperCase() method converts all string characters to upper case. toLowerCase() method converts all string characters to lower case.


Code:
package com.myjava.string;

public class MyStringCase {
    public static void main(String a[]){
        String str = "Change My Case";
        System.out.println("Upper Case: "+str.toUpperCase());
        System.out.println("Lower Case: "+str.toLowerCase());
    }
}

Example Output

Upper Case: CHANGE MY CASE
Lower Case: change my case

Other String Function Examples

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What is adapter class?
An adapter class provides the default implementation of all methods in an event listener interface. Adapter classes are very useful when you want to process only few of the events that are handled by a particular event listener interface. You can define a new class by extending one of the adapter classes and implement only those events relevant to you.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected] or you can comment on the page.

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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