How to serialize a JSON object child into a field?

Question

I have a JSON object that looks like this

{
  \"foo\":{
      \"bar\":\"bar\",
      \"echo\":\"echo\"
  }
}

But then my Java object looks

Answer 1

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Example {

@SerializedName("foo")
@Expose
private Foo foo;

public Foo getFoo() {
return foo;
}

public void setFoo(Foo foo) {
this.foo = foo;
}

}

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Foo {

@SerializedName("bar")
@Expose
private String bar;
@SerializedName("echo")
@Expose
private String echo;

public String getBar() {
return bar;
}

public void setBar(String bar) {
this.bar = bar;
}

public String getEcho() {
return echo;
}

public void setEcho(String echo) {
this.echo = echo;
}

}

you can find more details here