爪哇句法糖

Expectations exp = new Expectations();
exp.oneOf(alarm).getAttackAlarm(null);
conext.checking(exp)

Map map = new HashMap() {{
  put("key1", "value1");   
  put("key2", "value2"); 
}};

private final Collection<Integer> FIXED_COLLECTION = Collections.unmodifiableCollection(new HashSet<Integer>() 
{ // first set of braces declares anonymous inner class
    { add(1); add(2); add(3); } // second set is initializer block
});

public class Foo {
    private int i = getDefaultValue();

    private static int getDefaultValue() {
        return 5;
    }
}

getDefaultValue() i

public class Foo {
    private int i;

    {
        int z = 4 + 5;
        i = z + getDefaultValue();
    }

    private static int getDefaultValue() {
        return 5;
    }
}

oneOf()

new Set<String>(){{add("one");add("two")}}

new Expectations() { 
    { 
        oneOf(alarm).getAttackAlarm(null); 
    }
}

Expection

java.lang.Math

new Math()
{{
    double x = sin(23.65);
    double y = log(x);
    ...
}};

with names from Math
{
    double x = sin(23.65);
    double y = log(x);
    ...
}