Java

Strings Are Immutable in Java

JavaStringsImmutabilitybeginner

Every String method returns a new object rather than modifying the original, so the result must be assigned to be kept.

expected output

hello
HELLO

Why practise typing this

Typing strings code builds muscle memory for the symbols and indentation Java uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.

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