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Which TextComponent method is used to set a TextComponent to the read-only state?
Which TextComponent method is used to set a TextComponent to the read-only state? setEditable() 2012-11-28, 2663👍, 0💬

What is the purpose of the System class?
What is the purpose of the System class? The purpose of the System class is to provide access to system resources. 2012-11-27, 2287👍, 0💬

For which statements does it make sense to use a label?
For which statements does it make sense to use a label? The only statements for which it makes sense to use a label are those statements that can enclose a break or continue statement. 2012-11-27, 2098👍, 0💬

Does a class inherit the constructors of its superclass?
Does a class inherit the constructors of its superclass? A class does not inherit constructors from any of its super classes. 2012-11-26, 2332👍, 0💬

What is the Map interface?
What is the Map interface? The Map interface replaces the JDK 1.1 Dictionary class and is used associate keys with values. 2012-11-26, 2228👍, 0💬

What is the SimpleTimeZone class?
What is the SimpleTimeZone class? The SimpleTimeZone class provides support for a Gregorian calendar. 2012-11-16, 2358👍, 0💬

If a class is declared without any access modifiers, where may the class be accessed?
If a class is declared without any access modifiers, where may the class be accessed? A class that is declared without any access modifiers is said to have package access. This means that the class can only be accessed by other classes and interfaces that are defined within the same package. 2012-11-16, 2313👍, 0💬

What classes of exceptions may be caught by a catch clause?
What classes of exceptions may be caught by a catch clause? A catch clause can catch any exception that may be assigned to the Throwable type. This includes the Error and Exception types. 2012-11-15, 2340👍, 0💬

What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?
What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy? The Reader/Writer class hierarchy is character-oriented, and the InputStream/OutputStream class hierarchy is byte-oriented. 2012-11-15, 2464👍, 0💬

What happens when a thread cannot acquire a lock on an object?
What happens when a thread cannot acquire a lock on an object? If a thread attempts to execute a synchronized method or synchronized statement and is unable to acquire an object's lock, it enters the waiting state until the lock becomes available. 2012-11-14, 2411👍, 0💬

How is rounding performed under integer division?
How is rounding performed under integer division? The fractional part of the result is truncated. This is known as rounding toward zero. 2012-11-14, 2774👍, 0💬

What is the difference between the Font and FontMetrics classes?
What is the difference between the Font and FontMetrics classes? The FontMetrics class is used to define implementation-specific properties, such as ascent and descent, of a Font object. 2012-11-13, 3698👍, 0💬

Is the ternary operator written x : y ? z or x ? y : z ?
Is the ternary operator written x : y ? z or x ? y : z ? It is written x ? y : z. 2012-11-13, 2544👍, 0💬

Can an object be garbage collected while it is still reachable?
Can an object be garbage collected while it is still reachable? A reachable object cannot be garbage collected. Only unreachable objects may be garbage collected.. 2012-11-12, 2263👍, 0💬

Which class is extended by all other classes?
Which class is extended by all other classes? The Object class is extended by all other classes. 2012-11-12, 2288👍, 0💬

What is the difference between a Window and a Frame?
What is the difference between a Window and a Frame? The Frame class extends Window to define a main application window that can have a menu bar. 2012-11-09, 2298👍, 0💬

What is the % operator?
What is the % operator? It is referred to as the modulo or remainder operator. It returns the remainder of dividing the first operand by the second operand. 2012-11-09, 2286👍, 0💬

How are the elements of a BorderLayout organized?
How are the elements of a BorderLayout organized? The elements of a BorderLayout are organized at the borders (North, South, East, and West) and the center of a container. 2012-11-08, 2720👍, 0💬

What is the Dictionary class?
What is the Dictionary class? The Dictionary class provides the capability to store key-value pairs. 2012-11-08, 2356👍, 0💬

What is an object's lock and which objects have locks?
What is an object's lock and which objects have locks? An object's lock is a mechanism that is used by multiple threads to obtain synchronized access to the object. A thread may execute a synchronized method of an object only after it has acquired the object's lock. All objects and classes have lock... 2012-11-07, 2518👍, 0💬

If a variable is declared as private, where may the variable be accessed?
If a variable is declared as private, where may the variable be accessed? A private variable may only be accessed within the class in which it is declared. 2012-11-07, 2319👍, 0💬

What is the difference between the String and StringBuffer classes?
What is the difference between the String and StringBuffer classes? String objects are constants. StringBuffer objects are not. 2012-11-06, 2380👍, 0💬

What is the difference between a static and a non-static inner class?
What is the difference between a static and a non-static inner class? A non-static inner class may have object instances that are associated with instances of the class's outer class. A static inner class does not have any object instances. 2012-11-06, 2419👍, 0💬

Can a Byte object be cast to a double value?
Can a Byte object be cast to a double value? No, an object cannot be cast to a primitive value. 2012-11-05, 2529👍, 0💬

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.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML