Collections - Scripting in Java: Integrating with Groovy and JavaScript - page 245

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getUint32(byteOffset, littleEndian)

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getFloat32(byteOffset, littleEndian)

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getFloat64(byteOffset, littleEndian)

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setInt8(byteOffset, value)

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setUint8(byteOffset, value)

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setInt16(byteOffset, value, littleEndian)

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setUint16(byteOffset, value, littleEndian)

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setInt32(byteOffset, value, littleEndian)

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setUint32(byteOffset, value, littleEndian)

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setFloat32(byteOffset, value, littleEndian)

setFloat64(byteOffset, value, littleEndian)
The getters and setters for multibyte value types have a Boolean, optional last
parameter named littleEndian . It specifies whether the value being read and set is in
little-endian or big-endian format, If it is unspecified, the value is assumed to be big-
endian. It is useful if the data you read come from different sources in different endian-
ness. The following code uses a DataView to write and read a 32-bit signed integer and a
32-bit floating-point number from an ArrayBuffer :

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// Create an ArrayBuffer of 8 bytes
var buffer = new ArrayBuffer(8);

// Create a DataView from the ArrayBuffer
var data = new DataView(buffer);

// Use the first 4 bytes to store a 32-bit signed integer
data.setInt32(0, 1001);

// Use the second 4 bytes to store a 32-bit floating-point number
data.setFloat32(4, 129019.50);

var id = data.getInt32(0);
var salary = data.getFloat32(4);
print("id = " + id);
print("salary = " + salary);

id = 1001
salary = 129019.5