Introduction

• A PL/I Program
• PL/I language elements
• Describing elementary data items: CHARACTER and BIT
• Describing CONSECUTIVE files
• Assignment statement
• Processing sequential files
• OPEN, READ, WRITE, CLOSE, ON ENDFILE, DO … END
  • Computer Exercise: A First PL/I Program

Numeric data elements: DECIMAL and BINARY

• Structures
• Additional data descriptions: PICTURE and editing
  • Computer Exercise: A Report with Pictures

Logical expressions

• IF statements
• DO loops
  • Computer Exercise: A More Complex Report

Program design concepts

• A general pseudocode design approach
• Built-in functions and pseudovariables
  • Computer Exercise: Programming with Pseudocode

Report considerations

• Pseudocode: Report with page breaks
  • Computer Exercise: A Report with Page Breaks

Introduction to Stream I/O

• Control Breaks
• Pseudocode: Examples with control breaks
  • Computer Exercise: A Report with Two Levels of Control

Breaks

• File merges and match merges
• SELECT groups
• Internal procedures and CALL
• Pseudocode: Match merge examples
• Writing Maintainable Code
  • Computer Exercise: Match Merge Logic

Arrays

• Multi-dimensional arrays
• Initializing arrays
• Array operations
  • Computer Exercise: Table Handling

BLOCKS and Recognition of Names

• LEAVE, EXIT, and STOP
• DEFINED
• LIKE
• Update in place processing
• Arithmetic expressions
• GO TO
  • Optional Computer Exercise: Match Merge Extensions