How can I handle runtime errors in Java

Question

Please some one tell me what are runtime errors and How can I handle them using java code
This is important
Thanks in Advance
Chowdary AK

Answer 1

The java equivalent of function pointers is the one-instance class, as used to pass handlers to swing components, for example. Often an anonymous class is used.
Put your function signature in an interface, and pass an object that implements that interface:
public Class1 {
  public interface CallBack {
    void myMethod(String arg1);
  CallBack callb;
  public Class1(CallBack callb) {
   this.callb = callb;
  callb.myMethod("A string");
class2 {
   first = new Class1(new Class1.CallBack() {
     public void myMethod(String arg1) {
       ... do something ...