java invalid method declaration; return type requied in init, run

Question

i'm making a mini java game and i got an error while compiling:

error:invalid method declaration;return type requied
public init() throws Exception {
       ^

First version was public void init, but i can't do like that because i need to use try{..}catch(Malformed...) or while compiling i got another error (needs catch blah blah).

This is code:

public void run() throws Exception{
try{
this.zz();
}catch(MalformedURLException me){
throw me;
}
this.zo();
}

Answer 1

error:invalid method declaration;return type requied
public init() throws Exception {
      ^
// You are missing the return type 

You forgot to add the return type to the method declaration. Every Java method should specify a return type . If it doesn't return anything to the caller , make it void. In your case it returns a primitive int , so declare int as return type.

Need to re factor your code a little :

// return type is int as you are returning primitive int `0`.
public int init() throws MalformedURLException {
    //...
    try{
     this.zx();
   }catch(MalformedURLException me){
    // log the Exception here
    // me.printStackTrace();
    // logger.error(... exception message ....);
    throw me;
    // in case you return 0 , in spite of the Exception 
    // you will never know about the exceptional situation
   }
   return 0;
 }

Refer JLS 8.4.