help on strings

[appledon]

hello everyone could teach me how to make the user input instead of me
here my code i just needed my teststack to let the user input instead of me could tell me what to do ?

class Stack {
  private int maxSize;
 
  private char[] stackArray;
 
  private int top;
 
  public Stack(int s) {
    maxSize = s;
    stackArray = new char[maxSize];
    top = -1; 
  }
 
  public void push(char j) {
    stackArray[++top] = j;
  }
 
  public char pop() {
    return stackArray[top--];
  }
 
  public char peek() {
    return stackArray[top];
  }
 
  public boolean isEmpty() {
    return (top == -1);
  }
 
  public boolean isFull() {
    return (top == maxSize - 1);
  }
}

import java.util.Scanner;
 
 
public class TestStack {
public static void main(String[] args) {
String STS = " STS";
int stackSize = STS.length();
 
Stack theStack = new Stack(stackSize);
 
 
for (int j = 0; j < STI.length(); j++) {
char ch = STS.charAt(j);
theStack.push(ch);
}
 
while (!theStack.isEmpty()) {
char ch = theStack.pop();
System.out.println(ch);
}
}
}

[pbrockway2]

Use the Scanner (which you've imported...) to get the user's input.

Have a read of the API documentation to find useful methods for obtaining a string from the user.

[appledon]

i mean where do i put the inputs im really lose when it comes to let the user input im always fixed i dont let the user input but you point me to the right direction where to put this input string code in my stack/string code and which line should i start with when it comes to this input stuff im super lose and my code all about reversing word output like this

before: STI
after:ITS

my code works but my professor wants me to let the user input he such a pain in the ass to me but i have to do it my problem is i really don't know where to start input and which line should it be could please point me to the right direction please

[pbrockway2]

You can identify in your existing code where (the only time) the string is assigned to. And you have the API docs that describe how to get user input.

I can't see what else I can do short of writing teh codes. And I'm not going to do that (principally because I don't see that as helping.) Consult your textbook and make an attempt! In all sincerity, if you can't take the next step forward you really should talk to your teacher.

[appledon]

thanks alot man now my only problem is how to display after the reversal could give me a little tip on how to do it please here my code please where do i put the after the reversal code please i really need help here just a little im still new it i already broke my brain think this please where do i put the after reverse code

import java.util.Scanner;
 
public class TestStack {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    String name =null;
    System.out.println("Input your name: ");
    name = scan.nextLine();
    System.out.println(" before: " + name);
    int stackSize = name.length();
 
    Stack theStack = new Stack(stackSize);
 
    for (int j = 0; j < name.length(); j++) {
      char ch = name.charAt(j);
      theStack.push(ch);
    }
 
    while (!theStack.isEmpty()) {
      char ch = theStack.pop();
      System.out.println(ch);
    }
  }
}