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

Other String Function Examples

Knowledge Centre
Inner class and Anonymous class
Inner class: classes defined in other classes, including those defined in methods are called inner classes. An inner class can have any accessibility including private.

Anonymous class: Anonymous class is a class defined inside a method without a name and is instantiated and declared in the same place and cannot have explicit constructors.
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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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