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

Other String Function Examples

Knowledge Centre
String Vs StringBuffer
We know that String is immutable object. We can not change the value of a String object once it is initiated. If we try to change the value of the existing String object then it creates new object rather than changing the value of the existing object. So incase, we are going to do more modificatios on String, then use StringBuffer. StringBuffer updates the existing objects value, rather creating new object.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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