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Arthur Dupuy
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Asked: 2022-05-12T11:52:21+00:00 In:

Learn how to fix error: invalid method declaration; return type required

  • 32

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I am working on java, but I found the following warning message:

.\Voter.java:14: error: invalid method declaration; return type
  required
  
  .\Candidates.java:7: error: invalid method declaration; return type
  required
  
  .\Candidates.java:14: error: invalid method declaration; return type
  required

Is there any way to stabilize the issue “invalid method declaration; return type required”? I read a lot of topics about this, but all of them were trying to install anything. Is this the correct way, or any recommendation for me? Please find the beginning command below:

package org.arpit.java2blog;

 public class Employee {

    String name;

    int age;

    public Employee(String name) {

        this.name = name;

    }

        public setEmployeeDetails(String name,int age)

    {

        this.name=name;

        this.age=age;

    }

}
invalid method declaration
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2 Answers

  1. Best Answer
    Expert

    The cause: The error happens because you get compilation at line 13 with error invalid method declaration; return type required.

    Solution:

    Let’s change this line:

    public setEmployeeDetails(String name,int age)

    to

    public void setEmployeeDetails(String name,int age)
    package org.arpit.java2blog;
 
public class Employee {
 
    String name;
    int age;
 
    public Employee(String name) {
        this.name = name;
    }
 
    public void setEmployeeDetails(String name,int age)
    {
        this.name=name;
        this.age=age;
    }
}
    • 20

  2. Your method setDetails has not specified any return type. If it isn’t returning anything, then please specify void

    Voter class 

    public void setDetails(String name, int votNum, int precint)

    Candidates class 

    public void setDetails (String candName, int position, int totalVotes)

    Another thing, (Thanks Frank Pavageau). Your class name is Candidates. You have defined the constructor using Candidate but not s. This is why it should have a return type. Your constructor can be renamed Candidates or Candidate.

    • 5

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