Convert Java to COBOL using AI

Source-to-source code translation from Java using AI involves utilizing natural language processing (NLP) techniques and machine learning algorithms to analyze and understand source code

Features

FAQ

Translation Challenges

Translation Problem Java Syntax Example COBOL Syntax Example Score Point (1-10)
Object-Oriented Concepts class MyClass { ... } 01 MY-CLASS. ... 8
Exception Handling try { ... } catch (Exception e) { ... } PERFORM ... UNTIL ... with error checking 7
Generics List<String> list = new ArrayList<>(); 01 LIST-OF-STRING OCCURS 100 TIMES. 9
Multithreading Thread t = new Thread(() -> { ... }); CALL 'CICS' TO START A NEW TASK. 8
Lambda Expressions list.forEach(item -> System.out.println(item)); PERFORM VARYING INDEX FROM 1 BY 1 UNTIL INDEX > 100 9
Method Overloading void method(int a) { ... } PROCEDURE DIVISION USING BY REFERENCE A. 7
Access Modifiers private int value; 01 VALUE PIC 9(5) VALUE 0. 6
Annotations @Override Not applicable 10
Interfaces and Abstract Classes interface MyInterface { ... } 01 MY-INTERFACE. 8
Collections and Data Structures Map<String, Integer> map = new HashMap<>(); 01 MAP-OF-STRING-TO-INTEGER. 9

Object-Oriented Concepts

Java is a fully object-oriented language, where everything revolves around classes and objects. In contrast, COBOL is primarily a procedural language with object-oriented features added later.

Java Example:

class MyClass {
    private int value;

    public MyClass(int value) {
        this.value = value;
    }
}

COBOL Example:

01 MY-CLASS.
   05 VALUE PIC 9(5).

For more details, refer to the Java Documentation and COBOL Object-Oriented Programming.

Exception Handling

Java provides a robust exception handling mechanism using try, catch, and finally. COBOL lacks a direct equivalent, requiring a more procedural approach to error handling.

Java Example:

try {
    // code that may throw an exception
} catch (Exception e) {
    // handle exception
}

COBOL Example:

PERFORM UNTIL ERROR-CHECK
    // code that may cause an error
END-PERFORM.

For more information, see the Java Exception Handling Documentation and COBOL Error Handling.

Generics

Java supports generics, allowing for type-safe collections. COBOL does not have a direct equivalent, making it challenging to translate generic collections.

Java Example:

List<String> list = new ArrayList<>();

COBOL Example:

01 LIST-OF-STRING OCCURS 100 TIMES.
   05 STRING-VALUE PIC X(50).

For more details, refer to the Java Generics Documentation and COBOL Data Structures.

Multithreading

Java has built-in support for multithreading, while COBOL traditionally operates in a single-threaded environment, requiring external systems for concurrency.

Java Example:

Thread t = new Thread(() -> {
    // code to run in a new thread
});
t.start();

COBOL Example:

CALL 'CICS' TO START A NEW TASK.

For more information, see the Java Concurrency Documentation and COBOL Multithreading.

Lambda Expressions

Java supports lambda expressions for functional programming, while COBOL does not have a direct equivalent, making it difficult to translate such constructs.

Java Example:

list.forEach(item -> System.out.println(item));

COBOL Example:

PERFORM VARYING INDEX FROM 1 BY 1 UNTIL INDEX > 100
    DISPLAY LIST-OF-STRING(INDEX).
END-PERFORM.

For more details, refer to the Java Lambda Expressions Documentation and COBOL Procedures.

Method Overloading

Java allows method overloading, which is not directly supported in COBOL, leading to potential translation issues.

Java Example:

void method(int a) { ... }
void method(String b) { ... }

COBOL Example:

PROCEDURE DIVISION USING BY REFERENCE A.

For more information, see the Java Method Overloading Documentation and COBOL Procedures.

Access Modifiers

Java uses access modifiers (public, private, protected) to control visibility, while COBOL does not have a direct equivalent.

Java Example:

private int value;

COBOL Example:

01 VALUE PIC 9(5) VALUE 0.

For more details, refer to the Java Access Modifiers Documentation and COBOL Data Visibility.

Annotations

Java supports annotations for metadata, which have no direct equivalent in COBOL.

Java Example:

@Override
public void myMethod() { ... }

COBOL Example:

* Not applicable

For more information, see the Java Annotations Documentation.

Interfaces and Abstract Classes

Java uses interfaces and abstract classes for polymorphism, while COBOL's support for these concepts is limited.

Java Example:

interface MyInterface {
    void myMethod();
}

COBOL Example:

01 MY-INTERFACE.

For more details, refer to the Java Interfaces Documentation and COBOL Object-Oriented Programming.

Collections and Data Structures

Java has a rich set of built-in collections, while COBOL's data structures are more primitive and require manual management.

Java Example:

Map<String, Integer> map = new HashMap<>();

COBOL Example:

01 MAP-OF-STRING-TO-INTEGER.
   05 STRING-VALUE PIC X(50).
   05 INTEGER-VALUE PIC 9(5).

For more information, see the Java Collections Framework Documentation and COBOL Data Structures.