JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to remove non-ascii characters from a string?


Description:

Some times we need to handle text data, wherein we have to handle only ascii characters. Below example shows how to remove non-ascii characters from the given string by using regular expression.


Code:
package com.java2novice.string;

public class MyNonAsciiString {

	public static void main(String a[]){
		String str = "Bjrkoacute";
		System.out.println(str);
		str = str.replaceAll("[^\\p{ASCII}]", "");
		System.out.println("After removing non ASCII chars:");
		System.out.println(str);
	}
}

Example Output

Bjrkoacute
After removing non ASCII chars:
Bjrkoacute

Other String Function Examples

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Accessing elements are faster with ArrayList, because it is index based. But accessing is difficult with LinkedList. It is slow access. This is to access any element, you need to navigate through the elements one by one. But insertion and deletion is much faster with LinkedList, because if you know the node, just change the pointers before or after nodes. Insertion and deletion is slow with ArrayList, this is because, during these operations ArrayList need to adjust the indexes according to deletion or insetion if you are performing on middle indexes. Means, an ArrayList having 10 elements, if you are inserting at index 5, then you need to shift the indexes above 5 to one more.
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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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