- Java.lang Package classes
- Java.lang - Home
- Java.lang - Boolean
- Java.lang - Byte
- Java.lang - Character
- Java.lang - Character.Subset
- Java.lang - Character.UnicodeBlock
- Java.lang - Class
- Java.lang - ClassLoader
- Java.lang - Compiler
- Java.lang - Double
- Java.lang - Enum
- Java.lang - Float
- Java.lang - InheritableThreadLocal
- Java.lang - Integer
- Java.lang - Long
- Java.lang - Math
- Java.lang - Number
- Java.lang - Object
- Java.lang - Package
- Java.lang - Process
- Java.lang - ProcessBuilder
- Java.lang - Runtime
- Java.lang - RuntimePermission
- Java.lang - SecurityManager
- Java.lang - Short
- Java.lang - StackTraceElement
- Java.lang - StrictMath
- Java.lang - String
- Java.lang - StringBuffer
- Java.lang - StringBuilder
- Java.lang - System
- Java.lang - Thread
- Java.lang - ThreadGroup
- Java.lang - ThreadLocal
- Java.lang - Throwable
- Java.lang - Void
- Java.lang Package extras
- Java.lang - Interfaces
- Java.lang - Errors
- Java.lang - Exceptions
- Java.lang Package Useful Resources
- Java.lang - Useful Resources
- Java.lang - Discussion
Java.lang.String.toUpperCase() Method
Description
The java.lang.String.toUpperCase(Locale locale) method converts all of the characters in this String to upper case using the rules of the given Locale.
Declaration
Following is the declaration for java.lang.String.toUpperCase() method
public String toUpperCase()
Parameters
locale − use the case transformation rules for this locale.
Return Value
This method returns the String, converted to uppercase.
Exception
NA
Example
The following example shows the usage of java.lang.String.toUpperCase() method.
package com.tutorialspoint; import java.lang.*; import java.util.*; public class StringDemo { public static void main(String[] args) { String str1 = "This is TutorialsPoint"; // using the default system Locale Locale defloc = Locale.getDefault(); // converts all lower case letters in to upper case letters System.out.println("string value = " + str1.toUpperCase(defloc)); str1 = "www.tutorialspoint.com"; System.out.println("string value = " + str1.toUpperCase(defloc)); } }
Let us compile and run the above program, this will produce the following result −
string value = THIS IS TUTORIALSPOINT string value = WWW.TUTORIALSPOINT.COM
java_lang_string.htm
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