November 2021
Intermediate to advanced
340 pages
10h 46m
Chinese
Content preview from Spark快速大数据分析（第2版）
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this
.usage = usage;
}
// JavaBean的getter与setter
public int
getUid() {
return this
.uid; }
public void
setUid(
int
uid) {
this
.uid = uid; }
public
String getUname() {
return this
.uname; }
public void
setUname(String uname) {
this
.uname = uname; }
public int
getUsage() {
return this
.usage; }
public void
setUsage(
int
usage) {
this
.usage = usage; }
public
Usage() {
}
public
String toString() {
return
"uid: '" +
this
.uid + "', uame: '" +
this
.uname + "',
usage: '" +
this
.usage + "'";
}
}
// 显式创建编码器
Encoder<Usage> usageEncoder = Encoders.bean(Usage.class);
Random rand =
new
Random();
rand.setSeed(42);
List<Usage> data =
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.