Which Java type does wca4z typically use when generating code for C…

Question

Which Java type does wca4z typically use when generating code for COBOL numeric fields defined with PIC 9(11)V9(2) COMP-3?

Accepted Answer

BigDecimal, to preserve exact decimal arithmetic and precision matching COBOL packed decimal behavior — When you're generating Java code for COBOL COMP-3 numeric fields, you want BigDecimal because it preserves exact decimal arithmetic and precision matching packed decimal behavior. Don't let float, int, or long slip in; they lose the decimal semantics you need.

Answer

float, because packed decimal values are approximated using IEEE 754 single precision

Answer

int, because COMP-3 fields are always integers in COBOL

Answer

long, because COBOL packed decimal values are stored as 64-bit binary integers internally

Which Java type does wca4z typically use when generating code for COBOL numeric fields defined with PIC 9(11)V9(2) COMP-3?

Short Explanation

Full Explanation