Home / Strings / String.formatted()
Strings beginner

String.formatted()

Call formatted() on the template string itself.

Code Comparison
✕ Java 8 
String msg = String.format(
    "Hello %s, you are %d",
    name, age
);
✓ Java 15+ 
String msg =
    "Hello %s, you are %d"
    .formatted(name, age);
Why the modern way wins
📖

Reads naturally

Template.formatted(args) flows better than String.format(template, args).

🔗

Chainable

Can be chained with other string methods.

📏

Less verbose

Drops the redundant String.format() static call.

Old Approach
String.format()
Modern Approach
formatted()
Since JDK
15
Difficulty
beginner
JDK Support
String.formatted()
Available

Widely available since JDK 15 (Sept 2020)

How it works

String.formatted() is an instance method equivalent to String.format() but called on the format string. It reads more naturally in a left-to-right flow.

Related patterns

Strings beginner

Multiline JSON/SQL/HTML

Java 8
String sql =
    "SELECT u.name, u.email\n" +
    "FROM users u\n" +
    "WHERE u.active = true\n" +
    "ORDER BY u.name";
Java 15+
String sql = """
    SELECT u.name, u.email
    FROM users u
    WHERE u.active = true
    ORDER BY u.name
    """;
Hover to see modern ➜
JDK 15+ →
Strings beginner

String.strip() vs trim()

Java 8
// trim() only removes ASCII whitespace
// (chars <= U+0020)
String clean = str.trim();
Java 11+
// strip() removes all Unicode whitespace
String clean = str.strip();
String left  = str.stripLeading();
String right = str.stripTrailing();
Hover to see modern ➜
JDK 11+ →
Strings beginner

Multiline JSON/SQL/HTML

Java 8
String sql =
    "SELECT u.name, u.email\n" +
    "FROM users u\n" +
    "WHERE u.active = true\n" +
    "ORDER BY u.name";
Java 15+
String sql = """
    SELECT u.name, u.email
    FROM users u
    WHERE u.active = true
    ORDER BY u.name
    """;
Hover to see modern ➜
JDK 15+ →
Share 𝕏 🦋 in ⬡