palindrome

public class Stack{
private Object element[];
private int top;
int maxSize;
private String x,y;

public Stack(int s,String x){
maxSize=s;
element=new Object[maxSize];
top=-1;
this.x=x;
y="";
}

public boolean isEmpty(){
return(top==-1);
}

public void push(Object elt){
top=top+1;
element[top]=elt;
}

public Object pop(){
Object e=element[top];
top=top-1;
return e;
}

public Object peek(){
return element[top];
}

public void change(){

for(int i=0;i<x.length();i++){
push(x.charAt(i));
}
}

public void set(){
while(!isEmpty()){
y=y+pop();
}
System.out.println(y);

}

public boolean eguals(){
return(x.compareTo(y)==0);
}

public static void main(String a[]){
Stack s=new Stack(5,"amma");
s.change();
s.set();
System.out.println("palindrome  "+s.eguals());

Stack s2=new Stack(5,"ammaa");
s2.change();
s2.set();
System.out.println("palindrome  "+s2.eguals());
}
}


Output

/*C:\Users\KAPILAN\Desktop>java Stack
amma
palindrome  true
aamma
palindrome  false

C:\Users\KAPILAN\Desktop>*/