JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to replace string characters in java?


Description:

Below example shows how to get replace character or a string into a string with the given string. String provides replace() method to replace a specific character or a string which occures first. replaceAll() method replaces a specific character or a string at each occurence.


Code:
package com.myjava.string;

public class MyStringReplace {
    
    public static void main(String a[]){
    
        String str = "This is an example string";
        System.out.println("Replace char 's' with 'o':"
					+str.replace('s', 'o'));
					
        System.out.println("Replace first occurance of string\"is\" with \"ui\":"
					+str.replaceFirst("is", "ui"));
					
        System.out.println("Replacing \"is\" every where with \"no\":"
					+str.replaceAll("is", "no"));
    }
}

Example Output

Replace char 's' with 'o':Thio io an example otring
Replace first occurance of string"is" with "ui":Thui is an example string
Replacing "is" every where with "no":Thno no an example string

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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].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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