A profiler is used to analyze how much time a program spends in each part of the code. : Introduction « Language « Java Tutorial

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Java Tutorial » Language » Introduction 
1. 1. 4. A profiler is used to analyze how much time a program spends in each part of the code.

You can use this information to determine which parts of a program to optimize.

java -prof TestDrive
1. 1. Introduction
1. 1. 1. Developing a Java program involves
1. 1. 2. JDK Utilities
1. 1. 3. See the details of the compilation: use the verbose option
1. 1. 4. A profiler is used to analyze how much time a program spends in each part of the code.
1. 1. 5. The syntax to use the javac tool
1. 1. 6. Java Compiler Options
1. 1. 7. The java Tool
1. 1. 8. Commonly Used Java Command Options
1. 1. 9. The javadoc Tool
1. 1. 10. The jar Tool
1. 1. 11. The javap Tool
1. 1. 12. Some of the Options Supported by the javap Utility
1. 1. 13. The jarsignature Tool
1. 1. 14. The native2ascii Tool
1. 1. 15. The jconsole Tool
1. 1. 16. Set the memory available to the JVM
1. 1. 17. Java memory command line arguments
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