parameter.java

计算税收的程序

package TaxCaculator;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Parameter {
	public double inputIncome(){
		 double income;
	    System.out.print("请输入每月工资额：");
	    try {
				BufferedReader in = new BufferedReader(
					new InputStreamReader(System.in));
				String inputLine = in.readLine();
				income = Double.valueOf(inputLine).intValue();
			} catch (Exception exc) {
				System.out.println("工资额输入错误！");
				return 0;
			}
			if (income <= 0) {
				System.out.println("输入的工资额不合理！");
				return 0;
			}
			return income;
	    }
		
	public double inputFree(){
	    double free;
	    System.out.print("请输入免征基数：");
	    try {
				BufferedReader in = new BufferedReader(
					new InputStreamReader(System.in));
				String inputLine = in.readLine();
				free = Integer.valueOf(inputLine).intValue();
			} catch (Exception exc) {
				System.out.println("免征基数输入错误！");
				return 0;
			}
			if (free <0) {
				System.out.println("输入的免征基数不合理！");
				return 0;
			}
			return free;
	    }
		
	public double inputPer1(){
	    double P1;
	    System.out.print("请输入一级税率：");
	    try {
				BufferedReader in = new BufferedReader(
					new InputStreamReader(System.in));
				String inputLine = in.readLine();
				P1 = Integer.valueOf(inputLine).intValue();
		}catch (Exception exc) {
			System.out.println("税率输入错误！");
			return 0;
		}
		if (P1<0||P1>100) {
			System.out.println("输入的税率不合理！");
		}
			return P1;
	    }

	public double inputPer2(){
	    double P2;
	    System.out.print("请输入二级税率：");
	    try {
				BufferedReader in = new BufferedReader(
					new InputStreamReader(System.in));
				String inputLine = in.readLine();
				P2 = Integer.valueOf(inputLine).intValue();
			}catch (Exception exc) {
				System.out.println("税率输入错误！");
				return 0;
			}
			if (P2 <0||P2>100) {
				System.out.println("输入的税率不合理！");
				return 0;
			}
			return P2;
	}

	public double inputPer3(){
		double P3;
	    System.out.print("请输入三级税率：");
	    try {
				BufferedReader in = new BufferedReader(
					new InputStreamReader(System.in));
				String inputLine = in.readLine();
				P3 = Integer.valueOf(inputLine).intValue();
			}catch (Exception exc) {
				System.out.println("税率输入错误！");
				return 0;
			}
			if (P3<0||P3>100) {
				System.out.println("输入的税率不合理！");
				return 0;
			}
			return P3;
	}

	public double inputPer4(){
		double P4;
	    System.out.print("请输入四级税率：");
	    try {
				BufferedReader in = new BufferedReader(
					new InputStreamReader(System.in));
				String inputLine = in.readLine();
				P4 = Integer.valueOf(inputLine).intValue();
			}catch (Exception exc) {
				System.out.println("税率输入错误！");
				return 0;
			}
			if (P4<0||P4>100) {
				System.out.println("输入的税率不合理！");
				return 0;
			}
			return P4;
	}

	public double inputPer5(){
		double P5;
	    System.out.print("请输入四级税率：");
	    try {
				BufferedReader in = new BufferedReader(
					new InputStreamReader(System.in));
				String inputLine = in.readLine();
				P5 = Integer.valueOf(inputLine).intValue();
			}catch (Exception exc) {
				System.out.println("税率输入错误！");
				return 0;
			}
			if (P5<0||P5>100) {
				System.out.println("输入的税率不合理！");
				return 0;
			}
			return P5;
}
}