Java Stream API – Lazy Evaluation [duplicate]
This question already has answers here: Intermediate stream operations not evaluated on count (3 answers) Closed 15 hours ago. This code does not print anything: List.of(“a”,”b”,”c”,”D”).stream() .map(m -> { System.out.println(m); return m; }) .count(); If I add filter stage, it does print. List.of(“a”,”b”,”c”,”D”).stream() .filter(f -> f.matches(“[a-z]”)) .map(m -> { System.out.println(m); return m; }) .count(); Why […]
Java Stream API – Lazy Evaluation [duplicate]
This question already has answers here: Intermediate stream operations not evaluated on count (3 answers) Closed 15 hours ago. This code does not print anything: List.of(“a”,”b”,”c”,”D”).stream() .map(m -> { System.out.println(m); return m; }) .count(); If I add filter stage, it does print. List.of(“a”,”b”,”c”,”D”).stream() .filter(f -> f.matches(“[a-z]”)) .map(m -> { System.out.println(m); return m; }) .count(); Why […]
Java Stream API – Lazy Evaluation [duplicate]
This question already has answers here: Intermediate stream operations not evaluated on count (3 answers) Closed 15 hours ago. This code does not print anything: List.of(“a”,”b”,”c”,”D”).stream() .map(m -> { System.out.println(m); return m; }) .count(); If I add filter stage, it does print. List.of(“a”,”b”,”c”,”D”).stream() .filter(f -> f.matches(“[a-z]”)) .map(m -> { System.out.println(m); return m; }) .count(); Why […]
Java Stream API – Lazy Evaluation [duplicate]
This question already has answers here: Intermediate stream operations not evaluated on count (3 answers) Closed 15 hours ago. This code does not print anything: List.of(“a”,”b”,”c”,”D”).stream() .map(m -> { System.out.println(m); return m; }) .count(); If I add filter stage, it does print. List.of(“a”,”b”,”c”,”D”).stream() .filter(f -> f.matches(“[a-z]”)) .map(m -> { System.out.println(m); return m; }) .count(); Why […]
Java Stream API – Lazy Evaluation [duplicate]
This question already has answers here: Intermediate stream operations not evaluated on count (3 answers) Closed 15 hours ago. This code does not print anything: List.of(“a”,”b”,”c”,”D”).stream() .map(m -> { System.out.println(m); return m; }) .count(); If I add filter stage, it does print. List.of(“a”,”b”,”c”,”D”).stream() .filter(f -> f.matches(“[a-z]”)) .map(m -> { System.out.println(m); return m; }) .count(); Why […]
Java Stream API – Lazy Evaluation [duplicate]
This question already has answers here: Intermediate stream operations not evaluated on count (3 answers) Closed 15 hours ago. This code does not print anything: List.of(“a”,”b”,”c”,”D”).stream() .map(m -> { System.out.println(m); return m; }) .count(); If I add filter stage, it does print. List.of(“a”,”b”,”c”,”D”).stream() .filter(f -> f.matches(“[a-z]”)) .map(m -> { System.out.println(m); return m; }) .count(); Why […]