将字符串从一种方法传递到另一种方法

Question

抱歉，这个新手简单的问题，但是我需要将String从一个方法传递给另一个方法，现在我有点笨了

我想传递的String值（callbackURL和donationId）在此方法内：

public void postData() {
.
.
.
.
            String callbackURL = tokens.nextToken();
            String donationId = tokens.nextToken();

    } 

我想将值传递给另一个方法，假设它称为private examplePayment() 。 我该如何执行？ 谢谢

Answer 1

public void postData(){
.
.
.
.
      String callbackURL = tokens.nextToken();
      String donationId = tokens.nextToken();
      examplePayment(callbackURL, donationId);
}

private void examplePayment(String callback, String donationid){
      //deal with your callback and donationid variables
}

Answer 2

通过在方法签名中声明参数，将值传递给另一个方法，例如：

private void examplePayment(String callbackURL, String donationId) {
  //your logic in here
}

然后您可以像这样在代码中调用它：

public void postData() {
   String callbackURL = tokens.nextToken();
   String donationId = tokens.nextToken();
   examplePayment(callbackURL, donationId);
}

Answer 3

public void postData() {
            String callbackURL = tokens.nextToken();
            String donationId = tokens.nextToken();

           examplePayment(callbackURL,donationId);
    } 
private void examplePayment(String callbackURL,String donationId){


}

Answer 4

您是说要将字符串作为参数传递给函数？

public void postData() {
   .
   .
   . 
   String callbackURL = tokens.nextToken();
   String donationId = tokens.nextToken();
   examplePayment(callbackURL, donationId);
}
.
.
.
private void examplePayment(String callbackURL, String donationId) {
    .
    . 
    .
}

Answer 5

public String postData() {
   String callbackURL = tokens.nextToken();
   String someID = tokens.nextToken();
   this.examplePayment(callbackURL, someID);
}

OR
private examplePayment(String callbackURL, String someID){
    //   DO whatever you want with callback and someID
}

Answer 6

为什么不创建带有参数的方法，例如创建类似以下的方法

private examplePayment(String callbackURL, String donationId){

...do your work

}

调用时可以在postData方法中传递参数

public void postData() {
.
.
.
.
            String callbackURL = tokens.nextToken();
            String donationId = tokens.nextToken();
            examplePayment(callbackURL, donationId);// call the mthod
    } 

Answer 7

public class StringTest{    
    public void postData() {
        String callbackURL = "abc.cde.com";
        String donationId = "1233445";
        examplePayment(callbackURL,donationId);
    } 

    private void examplePayment(String pStrCallbackURL , String pStrDonationId){
        System.out.println("Callback url"+ pStrCallbackURL );
        System.out.println("DonationId "+ pStrDonationId );
    }
}

现在，如果要启用examplePayment方法来知道哪个方法正在发送字符串，则添加另一个方法参数，例如“ pCallingMethod”。

该方法看起来像

private void examplePayment(String pStrCallbackURL , String pStrDonationId , pStrCallingMethod){        
    System.out.println("Callback url"+ pStrCallbackURL );
    System.out.println("DonationId "+ pStrDonationId );
            System.out.println("Calling Method"+ pStrCallingMethod);
}

每当调用examplePayment()时，都将CallingMethodName作为参数传递给此方法。

这可以解决。