Valueof vs tostring

public static void main(String args[]) {  
    String str = null;
    System.out.println(String.valueOf(str));  // This will print a String equal to "null"        
    System.out.println(str.toString()); // This will throw a NullPointerException
}

Source: stackoverflow.com

Similar codes

0 vote208 views1 answer
Initialize empty dictionary java
Java
0 vote184 views1 answer
Short array in java
Java
0 vote228 views1 answer
Spring data jpa inheritance repository
Java Spring
1 vote196 views1 answer
Android java remove imageview source
Java
2 votes176 views1 answer
> Task :run FAILED Error: Could not find or load main class Caused by: java.lang.ClassNotFoundException:
Java
0 vote189 views1 answer
Sort a list in java according to last name
Java
3 votes192 views2 answers
Java loop through object properties
Java
0 vote198 views1 answer
Public string tostring() {
Java
0 vote204 views1 answer
Find center of screen graphic g
Java
0 vote363 views2 answers
How to use java 8 comparator
Java