JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: How to convert list to csv string format?


Description:

This example shows how to convert given list of strings to comma seperated values (csv) format.


Code:
package com.java2novice.arraylist;

import java.util.ArrayList;
import java.util.List;

public class MyListToCsvString {

	public String getListAsCsvString(List<String> list){
		
		StringBuilder sb = new StringBuilder();
		for(String str:list){
			if(sb.length() != 0){
				sb.append(",");
			}
			sb.append(str);
		}
		return sb.toString();
	}
	
	public static void main(String a[]){
		
		List<String> li1 = new ArrayList<String>(){
			{
				this.add("animal");
				this.add("nuts");
				this.add("java");
			}
		};
		MyListToCsvString mtc = new MyListToCsvString();
		System.out.println(mtc.getListAsCsvString(li1));
		List<String> li2 = new ArrayList<String>(){
			{
				this.add("java");
				this.add("unix");
				this.add("c++");
			}
		};
		System.out.println(mtc.getListAsCsvString(li2));
	}
}

Output:
animal,nuts,java
java,unix,c++
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List Of All ArrayList Sample Programs:

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  2. How to read all elements in ArrayList by using iterator?
  3. How to copy or clone a ArrayList?
  4. How to add all elements of a list to ArrayList?
  5. How to delete all elements from my ArrayList?
  6. How to find does ArrayList contains all list elements or not?
  7. How to copy ArrayList to array?
  8. How to get sub list from ArrayList?
  9. How to sort ArrayList using Comparator?
  10. How to reverse ArrayList content?
  11. How to shuffle elements in ArrayList?
  12. How to swap two elements in a ArrayList?
  13. How to convert list to csv string format?
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Knowledge Centre
What is java static import?
By using static imports, we can import the static members from a class rather than the classes from a given package. For example, Thread class has static sleep method, below example gives an idea:

import static java.lang.Thread;
public class MyStaticImportTest {
public static void main(String[] a) {
try{
sleep(100);
} catch(Exception ex){

}
}
}
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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