* Java memory Division & amp; this & amp; static & amp; return

Java syntax basics-function termination -- return

Public static int show (boolean B ){
If (B)
Return 11;
Else
Return 0;
}
--- The main function also has return


Public static void show2Int (int age ){
If (age <0)
System. out. println ("the value is invalid"); return;
System. out. println (x );

}
---------------------
Array
Array definition: a collection of the same type of data, that is, a container,
Features:
1. The data must be of the same type.
2. The number of elements must be specified during storage.
---------------


* ** Java memory Division

1. Register: The region of the cpu

2. Local Method Area: The system-related code storage area


3. stack memory: all local variables are stored, and the variable operation area is released at the end,
Local variables: parameters in the method, variables in the method, and variables in the statement


4. heap memory: It stores arrays and objects. In short, the storage in heap memory is an object.
An object is a place where multiple data can be stored. Remember, as long as the object is created with new, it is stored in the heap memory.
Features:
1. Any entity has a memory address value
2. All variables in heap memory have default initialization values.

5. Method Area: store shared data items

Memory Diagram

Diagram of object initialization process

<喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> Environment + Environment/zoaM8YnI + Environment/nU2rXEuq/K/environment/Environment + 6zbPJ1LGx5MG/zazD + Environment/i31iA8YnI + CiA8YnI + Environment/Environment + Environment/environment/ examples/examples + Cn08YnI + examples/K/bX308M8YnI + examples/W0M7Kvbb + o7q5udTsuq/K/dauvOS1xLX308O/examples + a4 + examples/K/examples + authorization + m/authorization ++ keys/K/keys + cores + CmNsYXNzIFBlcnNvbns8YnI + cores + Cn08YnI + cores + Cn08YnI + cores + 1rK/tPrC67/keys + cores + CnsvL77Wsr + 0 + sLrv + mjrL/Y1sax5MG/tcTJ + response + Cn08YnI + response/response + CnsvL7m51Oy0 + sLrv + response/nT0LbUz/O9 + NDQs/response "cons code run ");
Try ();
}
Person () {// initialize the corresponding object
......
}
Public void cry (){
Sop ("wow ");
}
}

This memory Diagram

------------
Static key? Http://www.bkjia.com/kf/yidong/wp/ "target =" _ blank "class =" keylink "> templates/zy/m5ss/toaM8YnI + templates + bXxcDgtcTP + 8 qntvjP + templates/vL + bX308M8YnI + templates /users + ssyss8nUsaOs0rK/users + users/users + rHtttTP86Ostvi + users/users + ssystcQ8YnI + users/users + ssystcQ8YnI + users/users + users + kernel + vrLMrLPJ1LGx5MG/kernel/ix8KO/kernel + kernel/PGJyPgq + kernel/kernel + bXxbbUz/O1xM/7yqe2 + M/kernel + kernel/vKp7XEz/kernel + CjMut8e + cores/ztffTwyA8YnI + Cr6yzKyx5MG/v8nS1LG7wODD + cores/cores + cores/K/cores/u8tL /samples + 7PGoaNqdm3Iz8q2uMPD + 7 PGuMPD + samples/K/bXEss7K/samples/u0rsr91 + samples/samples + Cn08YnI + region/region + region/0ru49rbUz/region/O5ss/region/uPa21M/z1tA8YnI + CiA8YnI + region/K/region + region/ release/release + 7X308O8tL/release + release/L + dLUvs3U2rG + release/LPM0PK + release + Cn08YnI + release + ssystPrC67/ pPGJyPgo8YnI + response/6Txicj4KU3lzdGVtLm91dC5wcmludGxuKA = "B ");

}
}