CIS 120 Midterm: CIS 120 UPenn Midterm2 sp13 solutions

• School: UPenn
• Department: Computer and Information Science
• Course: CIS 120
• Professor: All

Document Summary

In the java asm, object values are stored in the heap. In the java asm, method de nitions are stored in the heap. In the java asm, a (nonstatic) method dispatch o. m() uses the static type of o to determine which version of the method m to invoke. d. In the java asm, a (nonstatic) method dispatch o. m() implicitly pushes the this reference onto the stack. e. f. g. h. i. j. Once an array is allocated, its length cannot be changed. If x is an array of length 7, the expression x[7] will trigger an. The expression new c() invokes the main method of the class c. Instance variables (aka elds) can never be null. Object is a superclass of all classes in java. Write down a type for each of the following java variable de nitions. Due to subtyping, there may be more than one correct answer.