Q. Which of these methods return a class object given its name?

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Q. Which of these class defines how the classes are loaded?

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Q. Which of the interface contains all the methods used for handling thread related operations in Java?

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Q. Which of these class is used to make a thread?

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Q. Which of this interface is implemented by Thread class?

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Q. Which of these methods of a Thread class is used to suspend a thread for a period of time?

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Q. Which object Java application uses to create a new process?

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Q. Which of the following is true about Java system properties?

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Q. Java system properties can be set at runtime.

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Q. Which system property stores installation directory of JRE?

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Q. What does System.getProperty(“variable”) return?

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Q. What is true about the setProperties method?

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Q. How to use environment properties in the class?

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Q. How to assign values to variable using property?

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Q. Which environment variable is used to set java path?

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Q. How to read a classpath file?

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Q. Which of the following would compile without error?

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Q. Which of the following are valid calls to Math.max?

1. Math.max(1,4)
2. Math.max(2.3, 5)
3. Math.max(1, 3, 5, 7)
4. Math.max(-1.5, -2.8f)

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Q. Which statement is true given the following?

Double d = Math.random();

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Q. Which two statements are true about wrapper or String classes?

1. If x and y refer to instances of different wrapper classes, then the fragment x.equals(y) will cause a compiler failure.
2. If x and y refer to instances of different wrapper classes, then x == y can sometimes be true.
3. If x and y are String references and if x.equals(y) is true, then x == y is true.
4. If x, y, and z refer to instances of wrapper classes and x.equals(y) is true, and y.equals(z) is true, then z.equals(x) will always be true.
5. If x and y are String references and x == y is true, then y.equals(x) will be true.

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