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 vote163 views1 answer
Java tester si un caractere est une lettre
Java
3 votes218 views2 answers
Java vs python
Java
2 votes154 views6 answers
K
Java
0 vote214 views1 answer
Can we have abstract class having no abstract method in java?
Java
0 vote182 views2 answers
Devoluciones redsys api
Java
15 votes180 views6 answers
Factorial
Java
0 vote188 views1 answer
How to preset an array java
Java
2 votes180 views1 answer
HOW TO CODE JAVA???????????
Java
1 vote164 views1 answer
Org.springframework.orm.jpa.EntityManagerHolder cannot be cast to org.springframework.orm.hibernate5.SessionHolder
Java Spring
3 votes163 views1 answer
How to create textview programmatically in android
Java