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Java Discussion Thread
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Jul 23rd, 2009

Doing operations from different object help

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Hello. Im new to Java. I don't know much about Java's codes but I have a good background in C. Im using NetBeans 6.7.
I have this code:

java Syntax (Toggle Plain Text)
package javaapplication1;
 
 
public class Main {
    public int x = 3;
 
    public int test(){
        x += 4;
        return x;
    }
    public static void main(String[] args) {
 
        test x = new test();
        System.out.print("Hello World" + x.test);
 
    }
 
}
package javaapplication1;


public class Main {
    public int x = 3;
    
    public int test(){
        x += 4;
        return x;
    }
    public static void main(String[] args) {
     
        test x = new test();
        System.out.print("Hello World" + x.test);
     
    }

}

I want to do an operation of integer x from another object then print it in Main. I can't get the code to run. The compiler is underlining the two "test" in statement "test x = new test();"

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Whilliam

Reputation Points: 19

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Junior Poster

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110 posts
since Oct 2008

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Jul 23rd, 2009

-1

Re: Doing operations from different object help

the code you currently have is trying to construct a test object, but test is simply a method you call. therefore, you can simply say

java Syntax (Toggle Plain Text)

x = test();

, furthermore when you are printing the result, is it simply

java Syntax (Toggle Plain Text)

sillyboy

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Jul 23rd, 2009

Re: Doing operations from different object help

silliboy, a silly mistake.
Data member x and method test are instance memebers of class.

java Syntax (Toggle Plain Text)
package javaapplication1;
public class Main {
    public int x = 3;  // Instance field
    public int test()  // Instance method
   {
        x += 4;
        return x;
    }
    public static void main(String[] args) {
          //Create an instance of class Main
          Main p=new Main();   
          System.out.print("Hello World" + p.test());
      }
}
package javaapplication1;
public class Main {
    public int x = 3;  // Instance field
    public int test()  // Instance method
   {
        x += 4;
        return x;
    }
    public static void main(String[] args) {
          //Create an instance of class Main
          Main p=new Main();   
          System.out.print("Hello World" + p.test());
      }
}

adatapost

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Posting Genius

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since Oct 2008

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