Runtime Error

What This Error Means

This error occurs when a program runs out of stack space and exceeds the maximum depth of method calls, typically due to infinite recursion or a stack overflow.

Why It Happens

In Java, a stack overflow error happens when a method calls itself recursively without a base case that stops the recursion. This causes the method call stack to overflow, leading to a stack overflow error. It can also occur when a method calls another method that calls the original method, creating an infinite loop.

How to Fix It

1. 1To fix a stack overflow error, identify the recursive method and add a base case to stop the recursion. For example, if the recursive method is trying to traverse a tree, add a condition to stop the recursion when it reaches a leaf node. You can also use a loop instead of recursion to avoid the stack overflow error.

Example Code Solution

public class MyClass {
  public void myMethod() {
    myMethod(); // infinite recursion
  }
}

public class MyClass {
  private int count = 0;
  public void myMethod() {
    if (count >= 10) { // base case
      return;
    }
    count++;
    myMethod(); // recursion with base case
  }
}