diff options
Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.2.1/demos/mortgage-loanapproval/src/main/java/mortgage/MortgageCalculatorImpl.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-1.2.1/demos/mortgage-loanapproval/src/main/java/mortgage/MortgageCalculatorImpl.java | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/demos/mortgage-loanapproval/src/main/java/mortgage/MortgageCalculatorImpl.java b/sca-java-1.x/branches/sca-java-1.2.1/demos/mortgage-loanapproval/src/main/java/mortgage/MortgageCalculatorImpl.java new file mode 100644 index 0000000000..015f1bae98 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2.1/demos/mortgage-loanapproval/src/main/java/mortgage/MortgageCalculatorImpl.java @@ -0,0 +1,38 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package mortgage; + +import org.osoa.sca.annotations.Service; + +/** + * An implementation of the Calculator service. + */ +@Service(MortgageCalculator.class) +public class MortgageCalculatorImpl implements MortgageCalculator { + + public double getMonthlyPayment(double principal, int years, float interestRate) { + double monthlyRate = interestRate / 12.0 / 100.0; + double p = Math.pow(1 + monthlyRate, years * 12); + double q = p / (p - 1); + double monthlyPayment = principal * monthlyRate * q; + System.out.println("Monthly payment for a " + years + "-year loan of $" + principal + ": " + monthlyPayment); + return monthlyPayment; + } + +} |