Stack-java Code

Importjava.util.Arrays; Public classStackdemo {Private intmaxSize; Private Long[] stackarray; Private inttop; //Constructors     PublicStackdemo (ints) {        //Initialize StackMaxSize =s; Stackarray=New Long[MaxSize]; Top=-1; }    //into the stack     Public voidPushLongElement) {stackarray[++top] =element; }    //out of the stack     Public Longpop () {Longtemp =Stackarray[top]; //revert to default valuestackarray[top--] = 0;        System.out.println (arrays.tostring (Stackarray)); returntemp; }    //pop-up stack top value     Public Longpick () {returnStackarray[top]; }    //determine if the stack is full     Public BooleanIsfull () {returnTop==maxsize-1; }}

Stack, advanced out can be imagined as a gun in the magazine.

Stacks have many uses, such as "reverse word", "string Match" (case can refer to data structure and algorithm Java version)

Stack-java Code