JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to extract Char Array From String in java?


Description:

Below example shows how to copy range of characters from the given string to another character array. By suing getChars() method, you can copy range of characters from the given string.


Code:
package com.myjava.string;

public class MyCharArrayCopy {

    public static void main(String a[]){
    
        String str = "Copy chars from this string";
        char[] ch = new char[5];
        /**
         * The getChars() method accepts 4 parameters
         * first one is the start index from string
         * second one is the end index from string
         * third one is the destination char array
         * forth one is the start index to append in the 
         * char array.
         */
        str.getChars(5, 10, ch, 0);
        System.out.println(ch);
    }
}

Example Output

chars

Other String Function Examples

Knowledge Centre
What is fail-fast in java?
A fail-fast system is nothing but immediately report any failure that is likely to lead to failure. When a problem occurs, a fail-fast system fails immediately. In Java, we can find this behavior with iterators. Incase, you have called iterator on a collection object, and another thread tries to modify the collection object, then concurrent modification exception will be thrown. This is called fail-fast.
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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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