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- Text Transcript of the tutorial broken down into steps.
- Source code
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In this walk-through you will learn about using the "toString" method, a very useful method used to give any object a default string representation.
Step 1.Create a class and name it "stringDinger"
public class stringDinger {
}
Step 2.Create 3 int vars(month, day, year)
private int month;
private int day;
private int year;
Step 3.Create a constructor for the "stringDinger" class that accepts 3 parameters.
public stringDinger(int m,int d,int y){
Step 4.Set each of the incoming parameters to their corresponding variables:
month=m;
day=d;
year=y;
Step 5.create a print function statement that prints the sentence "the constructor for this is %s\n , this"(note: "using "this" in this case will equal whatever you're "toString" method returns )
System.out.printf("the constructor for this is %s\n",this);
Step 6.Create a "toString" method that returns the variables formated like this : "month/day/year":
public String toString(){
return String.format("%d/%d/%d",month,day,year);
}
Step 7.Create a new class with a main method, name the class "useTheDinger"
class useTheDinger{
public static void main(String[] args){
}
}
Step 8.Create a stringDinger object with the parameters 4,5,2011
stringDinger theDingerSpeaks = new stringDinger(4,5,6);
End of Tutorial
TNB Java Tut 46 Complete Source Code
"stringDinger" Class
"stringDinger" Class
public class stringDinger {
private int month;
private int day;
private int year;
public stringDinger(int m,int d,int y){
month=m;
day=d;
year=y;
System.out.printf("the constructor for this is %s\n",this);
}
public String toString(){
return String.format("%d/%d/%d",month,day,year);
}
}
"useTheDinger" Class
class useTheDinger{
public static void main(String[] args){
stringDinger theDingerSpeaks = new stringDinger(4,5,6);
System.out.println(theDingerSpeaks.toString());
}
}
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