Java : Readable with Examples
Last Modified : January 13, 2024 Published : April 20, 2022
Readable (Java SE 21 & JDK 21) with Examples.
You will find code examples on most Readable methods.
Summary
A Readable is a source of characters. Characters from a Readable are made available to callers of the read method via a CharBuffer.
final Readable readable = CharBuffer.wrap("abc");
final var cb = CharBuffer.allocate(5);
System.out.println(readable.read(cb)); // 3
System.out.println(Arrays.toString(cb.array())); // [a, b, c, , ]
Methods
int read (CharBuffer cb)
Attempts to read characters into the specified character buffer.
final Readable readable = CharBuffer.wrap("abc");
final var cb = CharBuffer.allocate(5);
System.out.println(readable.read(cb)); // 3
System.out.println(Arrays.toString(cb.array())); // [a, b, c, , ]
final Readable readable = CharBuffer.wrap("abcdXYZ");
final var cb1 = CharBuffer.allocate(5);
System.out.println(readable.read(cb1)); // 5
System.out.println(Arrays.toString(cb1.array())); // [a, b, c, d, X]
final var cb2 = CharBuffer.allocate(5);
System.out.println(readable.read(cb2)); // 2
System.out.println(Arrays.toString(cb2.array())); // [Y, Z, , , ]
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