# Use Stream::map
# Description
Extracts a block from the body of the consumer of the Stream::forEach method and introduces Stream::map instead.
This makes complicated code blocks easier to read and reuse.
# Benefits
Arguably the lambda expression is easier to read and can be combined with other stream operations.
# Tags
# Code Changes
# Unwrapping single statement
Pre
list.stream()
.filter(s -> !s.isEmpty())
.forEach(s -> {
String subString = s.substring(1);
sb.append(subString);
});
Post
list.stream()
.filter(s -> !s.isEmpty())
.map(s -> s.substring(1))
.forEach(subString -> sb.append(subString));
Use a Java Refactoring Tool
No license required
You can review this refactoring on your code without a license by installing jSparrow to your Eclipse IDE. Install the plug-in from Eclipse IDE: Eclipse Marketplace.
System-wide Refactoring
Do you want to automate this refactoring (and many more) to your system-wide code? The automatic application of this system-wide refactoring can be unlocked by acquiring your jSparrow license.
# Properties
| Property | Value |
|---|---|
| Rule ID | LambdaForEachMap |
| First seen in jSparrow version | 2.0.0 |
| Minimum Java version | 8 |
| Remediation cost | 15 min |