Q1. How would you go about choosing the right data types for your application? A1. Java is what is … … Read more ›...
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02: 10 Java String class interview Q&As
Java Collection interview questions and answers and Java String class interview questions and answers are must know for any Java developer …
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03: Java autoboxing & unboxing benefits & caveats interview Q&As
Q1. What do you understand by the terms “autoboxing” and “autounboxing” in Java? A1. Java automatically converts a primitive type like … … Read more ›...
04: Java primitives & objects memory consumption
Q1. How much memory space does a primitive type int occupy in Java? A1. 4 bytes. Q2. Java … … Read more ›...
05: Java Date and Time Interview Q&As
Q1. What is wrong with old Java.util.Date & java.util.Calendar/java.sql.* APIs and why should joda-time & Java 8 libraries favored? A1. Old… … Read more ›...
06: Understanding TimeZones with Java 8 examples
What is UTC? which stands for Coordinated Universal Time. The diagram below shows the standard time offsets of different countries. …
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Convert Java Date/Time to String & String back to Date/Time
#1. Why convert a Date to String & a String back to Date
(a) Convert a String input from say a …
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Converting String to Amount and Amount to String
#1. Does Java have a “Money” class? No. This will change in Java 9 with the “Money API”. JSR 354 defines … … Read more ›...
Generating a UUID (aka GUID) in Java
UUID stands for Universally Unique ID. A UUID is known in the Microsoft world as as a GUID.
What does ……
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