How to initialise a 2D array using CodeModel

Question

I need to initialise a 2d array like below

     Object[][] someName = {
                             {\"param1\",\"param2\",\"param3\"}, 
                                


        

Answer 1

It might not be exactly the same, but the following code initializes the example 2d array:

JDefinedClass testClass = codeModel._class("TestClass");

JMethod runme = testClass.method(JMod.PUBLIC, codeModel.VOID, "runme");
JBlock methodBlock = runme.body();

JExpression exp = JExpr.newArray(codeModel.ref(String.class).array())
    .add(JExpr.newArray(codeModel.ref(String.class))
                        .add(JExpr.lit("param1")).add(JExpr.lit("param2")).add(JExpr.lit("param3")))
    .add(JExpr.newArray(codeModel.ref(String.class))
                        .add(JExpr.lit("param4")).add(JExpr.lit("param5")).add(JExpr.lit("param6")));

methodBlock.decl(JMod.NONE, codeModel.ref(Object.class).array().array(), "someName", exp);

This generates the following, which explicitly declares the inner arrays:

public class TestClass {


    public void runme() {
        Object[][] someName = new String[][] {new String[] {"param1", "param2", "param3"}, new String[] {"param4", "param5", "param6"}};
    }

}

The code you tried was almost correct, you just needed to declare the array within the newArray() call: JExpr.newArray(codeModel.ref(String.class).array())