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

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What is java static import?
By using static imports, we can import the static members from a class rather than the classes from a given package. For example, Thread class has static sleep method, below example gives an idea:

import static java.lang.Thread;
public class MyStaticImportTest {
public static void main(String[] a) {
try{
sleep(100);
} catch(Exception ex){

}
}
}
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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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