how to create apex trigger class using metadata api in java?

in salesforce how to create apex trigger class using tooling api in java?

like i have created apex class using tooling api in java. the code is: ApexClass apexClass1 = new ApexClass(); apexClass1.setBody(classBody); // class body is string ApexClass[] classes = { apexClass1 }; SaveResult[] saveResults = stub.create(classes); apexClass1.getBody(); if (saveResults[0].success) { apexClassId=saveResults[0].id;

                    }

So can anyone tell me how to create apex trigger in the same maer.