In Java public class Stack int maxsize10 int stackarraynew

In Java

public class Stack {

int maxsize=10;

int[] stackarray=new int[maxsize];

int top=-1;

void push(int a)

{

if(top+1>=maxsize)

//Your Code goes here

}

void pop()

{

if(top<0)

//Your code goes here

}

void top()

{

//Your code goes here

}

void print()

{

//Your code goes here

}

public static void main(String[] args) {

// TODO Auto-generated method stub

Stack s=new Stack();

s.push(3);

s.push(34);

s.push(33);

s.push(93);

s.push(34);

s.push(33);

s.push(93);

s.push(34);

s.push(33);

s.push(93);

s.push(93);

s.top();

s.pop();

s.top();

s.push(67);

s.print();

}

}

Solution

public class Stack {
int maxsize=10;
int[] stackarray=new int[maxsize];
int top=-1;

void push(int a)
{
if(top+1>=maxsize) //checking whether top is not greater than maxsize
System.out.println(\"stack is full\");
else
{stackarray[top+1]=a; //push at the top location of the array
top++;} //increase the index of top

//Your Code goes here
}
void pop()
{
if(top<0) //checking whether top is not less than 0
System.out.println(\"Stack is empty..!!..nothing to delete\");   

else
{stackarray[top]=0; //pop the element,here i am filling value zero,i.e main element is popped from array and zero is filled
top--; //decrease the index value of top
}

//Your code goes here
}
void top()
{
for(int i=0;i<maxsize;i++)
{if(stackarray[i]==0) //if value in array is zero,then index-1 will be the index of top as we are assuming zero value means no element in stackarray
{
top=i-1;   
break;
}
  
}
}
void print()
{int i=top;
System.out.println(\"value in stack\");
while(stackarray[i]!=0) //printing the stack i.e array in reverse order
{
System.out.println(stackarray[i]);
i--;
}
//Your code goes here
}
public static void main(String[] args) {
// TODO Auto-generated method stub
Stack s=new Stack();
s.push(3);
s.push(34);
s.push(33);
s.push(93);
s.push(34);
s.push(33);
s.push(93);
s.push(34);
s.push(33);
s.push(93);
s.push(93);
s.top();
s.pop();
s.top();
s.push(67);
s.print();
}

}

***********OUTPUT************
stack is full
value in stack
67
33
34
93
33
34
93
33
34
3

***********OUTPUT************

Please let me know in case of any question.