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Add Case conversion functions to the article (#26922)

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* Add Case conversion functions to the article

These functions tell the programmers about converting their string data type value either into upper case letters or lower case letters.

* Fix formatting and phrasing
This commit is contained in:
SakshamGupta1995
2019-03-29 14:52:17 +05:30
committed by Manish Giri
parent 784de367a1
commit 78949d9f61
1 changed files with 37 additions and 0 deletions
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37
guide/english/java/strings/index.md
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@ -220,5 +220,42 @@ The result will be:
Free
```
#### String Case Conversion
1. `.toLowerCase()` - This method will convert the string into lower case characters.
Example:
```java
String text1 = "Welcome99";
String text2 = "WELCOME";
String text3 = "well";
System.out.println(text1.toLowerCase());
System.out.println(text2.toLowerCase());
System.out.println(text3.toLowerCase());
```
The output will be:-
```
welcome99
welcome
well
```
2. `.toUpperCase()` - This method will convert the string into upper case characters.
Example:
```java
String text1 = "Welcome99";
String text2 = "WELCOME";
String text3 = "well";
System.out.println(text1.toUpperCase());
System.out.println(text2.toUpperCase());
System.out.println(text3.toUpperCase());
```
The output will be:-
```
WELCOME99
WELCOME
WELL
```
**More Information:**
- [String Documentation](https://docs.oracle.com/javase/7/docs/api/java/lang/String.html)