What is CLDC in J2ME?

February 25th, 2007 by uCertify Leave a reply »

CLDC stands for Connected Limited Device Configuration. It defines runtime environment for devices with limited storage capacity. It is designed for 16-bit or 32-bit devices. CLDC complacent devices have a memory capacity ranging between 160 and 512 KB. The Connected Limited Device Configuration (CLDC) is a specification of a framework for Java ME applications targeted at devices with very limited resources, such as pagers and mobile phones. CLDC was developed under the Java Community Process as JSR 30 (CLDC 1.0) and JSR 139 (CLDC 1.1).

Following are the limitations of CLDC:

  1. The Serializable interface is not supported.
  2. java.lang.Thread.interrupted() is not supported.
  3. The java.lang.reflect package and any of its classes are not supported.
  4. Methods on java.lang.Class that obtain Constructors or Methods or Fields are not supported.
  5. Floating point math and data structures are not supported.
  6. Weak references are not supported.
  7. java.lang.Thread.interrupt() is not supported.

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