76. Which system property stores installation directory of JRE?

1. 1. java.class.path

   
   
   

   2. java.home

   
   
   

   3. user.home

   
   
   

   4. user.dir

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   java.home is the installation directory of Java Runtime Environment.

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

1. 1. Null

   
   
   

   2. Runtime error

   
   
   

   3. Value stored in variable

   
   
   

   4. Compilation error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   System.getProperty(“variable”) returns null value. Because, variable is not a property and if property does not exist, this method returns null value.

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78. Which of these package is used for text formatting in Java programming language?

1. 1. java.awt

   
   
   

   2. java.awt.text

   
   
   

   3. java.io

   
   
   

   4. java.text

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   java.text allows formatting, searching and manipulating text.

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79. How to read a classpath file?

1. 1. InputStream in =this.getClass().getResourceAsStream(“SomeTextFile.txt”);

   
   
   

   2. InputStream in =this.getClass().getResource(“SomeTextFile.txt”);

   
   
   

   3. InputStream in =this.getClass().getResource(“classpath:/SomeTextFile.txt”);

   
   
   

   4. InputStream in =this.getClass().getResourceClasspath(“SomeTextFile.txt”);

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   This method can be used to load files using relative path to the package of the class.

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

1. 1. CLASSPATH

   
   
   

   2. MAVEN_HOME

   
   
   

   3. JAVA

   
   
   

   4. JAVA_HOME

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   JAVA_HOME is used to store a path to the java installation.

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