Simple java program:
Topic: Binary File I/O
Create a simple application called contact list that will accept a person’s first and last name from
a dialog box, the accept a phone number from a dialog box.
Now save that information to a binary file.
You’ll only have one record.
----------------------------
Next,
Go back to your contact list application modify it such that that will accept a person’s first and
last name from a dialog box, then accept a phone number from a dialog box. It will repeat this
process until the user types in some sentinel value (terminating value) for name.
If the file doesn’t exist currently, you’ll create a new file. If it does, you’ll append to it.
Solution
public class SimpleJava {
string first,last, phone;
publicstaticvoid main(String[] args) throws Exception {
String first = System.console().readLine();
DataOutputStream out = openOutputStream(\"binary\");
while(!first.equals(\"Terminate\")) {
String last = System.console().readLine();
String phone = System.console().readLine();
out.writeUTF(first+last+phone);
String first = System.console.readline();
}
}
}.
Andreas Schleicher presents at the launch of What does child empowerment mean...
Simple java programTopic Binary File IOCreate a simple applic.pdf
1. Simple java program:
Topic: Binary File I/O
Create a simple application called contact list that will accept a person’s first and last name from
a dialog box, the accept a phone number from a dialog box.
Now save that information to a binary file.
You’ll only have one record.
----------------------------
Next,
Go back to your contact list application modify it such that that will accept a person’s first and
last name from a dialog box, then accept a phone number from a dialog box. It will repeat this
process until the user types in some sentinel value (terminating value) for name.
If the file doesn’t exist currently, you’ll create a new file. If it does, you’ll append to it.
Solution
public class SimpleJava {
string first,last, phone;
publicstaticvoid main(String[] args) throws Exception {
String first = System.console().readLine();
DataOutputStream out = openOutputStream("binary");
while(!first.equals("Terminate")) {
String last = System.console().readLine();
String phone = System.console().readLine();
out.writeUTF(first+last+phone);
String first = System.console.readline();
}
}
}
![Simple java program:
Topic: Binary File I/O
Create a simple application called contact list that will accept a person’s first and last name from
a dialog box, the accept a phone number from a dialog box.
Now save that information to a binary file.
You’ll only have one record.
----------------------------
Next,
Go back to your contact list application modify it such that that will accept a person’s first and
last name from a dialog box, then accept a phone number from a dialog box. It will repeat this
process until the user types in some sentinel value (terminating value) for name.
If the file doesn’t exist currently, you’ll create a new file. If it does, you’ll append to it.
Solution
public class SimpleJava {
string first,last, phone;
publicstaticvoid main(String[] args) throws Exception {
String first = System.console().readLine();
DataOutputStream out = openOutputStream("binary");
while(!first.equals("Terminate")) {
String last = System.console().readLine();
String phone = System.console().readLine();
out.writeUTF(first+last+phone);
String first = System.console.readline();
}
}
}](https://image.slidesharecdn.com/simplejavaprogramtopicbinaryfileiocreateasimpleapplic-230702161850-d0c21437/85/Simple-java-programTopic-Binary-File-IOCreate-a-simple-applic-pdf-1-320.jpg)
