How to extract initials using stream in java In this Java code snippet, a list of strings named `names` is created, containing full names like “John Doe,” “Jane Smith,” and “Alice Johnson.” Using Java 8 streams, a new list called `initials` is generated by applying a transformation to each full name in the `names` list….
How to Convert temperature using stream in java In this Java code snippet, a list of double values named `celsiusTemps` is created, containing temperatures in Celsius: 0.0, 10.0, 20.0, and 30.0. Using Java 8 streams, a new list called `fahrenheitTemps` is generated by applying a conversion formula to each Celsius temperature. The `map` operation transforms…
How to check Palindrome in java using Stream API In this Java code snippet, a list of strings named `words` is created, containing “radar,” “hello,” and “deified.” Using Java 8 streams, a new list called `palindromes` is generated by filtering the `words` list. The `filter` operation checks if a string is a palindrome by comparing…
How to sum even numbers with Reduce in java In this Java code snippet, a list of integers named `numbers` is created with values 2, 4, 6, 8, and 10. Using Java 8 streams, the code calculates the sum of even numbers from the `numbers` list. The `filter` operation selects only even integers by checking…
How to filter strings via length using stream in java In this Java code snippet, a list of strings named `words` is created, containing “apple,” “banana,” “cherry,” and “date.” Utilizing Java 8 streams, a new list called `longWords` is generated by filtering the `words` list. The `filter` operation selects only those strings from the original…
Calculate factorial using stream in java ? In this Java code snippet, an integer variable `n` is set to 5. Using Java 8 streams, the code calculates the factorial of `n`. It does this by generating a range of integers from 1 to `n` (inclusive), and then reducing them using a multiplication operation. The `reduce`…
Stream : Summing Values in a Map In this Java code snippet, a `Map` called `scores` is created to store name-score pairs. Two entries are added for “Alice” with a score of 90 and “Bob” with a score of 85. The subsequent lines utilize Java 8 streams to extract the values (scores) from the `scores`…
Stream : Group names by Length In this Java code snippet, we’re grouping these strings by their lengths. The `groupingBy` collector organizes the strings into a map where the keys represent the lengths, and the values are lists of strings with the same length. The code snippet efficiently creates the `groupedByLength` map, which groups the…
Stream: Remove duplicates from List In this Java code snippet, we’re dealing with a list of integers: 1, 2, 2, 3, 4, 4, and 5. Using streams, we’re filtering out duplicate values, resulting in a list of distinct numbers. The `distinct` operation ensures that each value appears only once in the resulting list. The code…
Stream: Finding Average Length In this Java code snippet, we’re working with a list of strings: “apple,” “banana,” and “cherry.” Using streams, we transform each string into its corresponding length and convert it to an integer. Then, we calculate the average of these lengths. If the list is empty, the `orElse` function sets the average…
