elasticsearch - What does this symbol mean in Java? -

elasticsearch - What does this symbol mean in Java? -

i looking through illustration code elasticsearch library , noticed these symbols:

java.lang.short.class.getname(), "[s", "[[s", "[[[s", java.lang.character.class.getname(), "[c", "[[c", "[[[c", java.lang.byte.class.getname(), "[b", "[[b", "[[[b", java.lang.boolean.class.getname(), "[z", "[[z", "[[[z",

what mean? noted next primitive datatype objects.

its class names array. try

system.out.println(new short[1].getclass()); system.out.println(new short[1][1].getclass()); system.out.println(new int[1].getclass()); system.out.println(new char[1].getclass());

java elasticsearch