java期末编程题.doc

实验（一） 流程控制l 输入源代码package com.fafu.data;import java.util.Scanner;public class DataTransfer /* * param args */public static String transfer2Other(int num, int base)String str = ;while(num != 0)str +=( (num % base = 10) ? (char)(A+ (num % 10) : num % base);num /= base;return str;public static String toBinary(int num)return DataTransfer.transfer2Other(num, 2);public static String toOctal(int num)return DataTransfer.transfer2Other(num, 8);public static String toHexadecimal(int num)return DataTransfer.transfer2Other(num, 16);public static String Reverse(String s)String str = ;for(int i = s.length()-1; i = 0; -i)str += (s.charAt(i);return str;public static void main(String args) / TODO Auto-generated method stubScanner input = new Scanner(System.in);System.out.print(Enter a number :);int n = input.nextInt();System.out.print(Enter a base :);int base = input.nextInt();System.out.println(n + transfered by + base + is + Reverse(DataTransfer.transfer2Other(n, base);System.out.println(n + transfered by 2 is + Reverse(DataTransfer.transfer2Other(n, 2);System.out.println(n + transfered by 8 is + Reverse(DataTransfer.transfer2Other(n, 8);System.out.println(n + transfered by 16 is + Reverse(DataTransfer.transfer2Other(n, 16);实验（二） 数组package com.fafu.experiment;import java.util.Scanner;/* * author Administrator * */public class MatrixTest /* * param args */* * 一维矩阵最大值 * param matrix * return */public static int max(int matrix)int tmp = matrix0;for(int i = 1; i matrix.length; +i)if(tmp matrixi)tmp = matrixi;return tmp;/* * 二维矩阵最大值 * param matrix * return */public static int max(int matrix )int tmp = matrix00;for(int row = 0; row matrix.length; +row)for(int col = 0; col matrixrow.length; +col)if(tmp matrixrowcol)tmp = matrixrowcol;return tmp;/* * 一维矩阵平均值 * param matrix * return */public static double average(int matrix)double sum = 0.0;for(int i = 0; i matrix.length; +i)sum += matrixi;return sum / matrix.length;/* * 二维矩阵平均值 * param matrix * return */public static double average(int matrix )double sum = 0.0;int max_col = matrix0.length;for(int row = 0; row matrix.length; +row)if(max_col matrixrow.length)max_col = matrixrow.length;for(int col = 0; col matrixrow.length; +col)sum += matrixrowcol;return sum / (matrix.length * max_col);/* * 行列相同的两个矩阵相加 * param a * param b * return */public static int add(int a, int b)int row = 0, col = 0;for(row = 0; row a.length; +row)for(col = 0; col arow.length; +col)arowcol += (arowcol + browcol);return a;/* * 两个矩阵相乘 * param a * param b * return */public static int multiply(int a, int b)int tmp = new inta.lengthb0.length;for(int i = 0; i a.length; +i)for(int j = 0; j bi.length; +j)for(int k = 0; k b.length; +k)tmpij += (aik * bkj); return tmp;SuppressWarnings(static-access)public static void main(String args) / TODO Auto-generated method stubSystem.out.println(Enter one-array length:);SuppressWarnings(resource)Scanner input = new Scanner(System.in);int n = input.nextInt();int a = new intn;System.out.println(enter elements:);for(int i = 0; i n; +i)ai = input.nextInt();System.out.println(Enter two-array row length:);int p = input.nextInt();System.out.println(Enter two-array col length:);int q = input.nextInt();int matrixA = new intpq;/矩阵ASystem.out.println(enter elements:);for(int row = 0; row p; +row)for(int col = 0; col q; +col)matrixArowcol = input.nextInt();System.out.println(Enter another two-array row length:);int r = input.nextInt();System.out.println(Enter another two-array col length:);int t = input.nextInt();int matrixB = new intrt;if(q != r)System.out.println(a two-array col length does not equal another two-array row length.);System.exit(0);System.out.println(enter elements:);/矩阵Bfor(int row = 0; row r; +row)for(int col = 0; col t; +col)matrixBrowcol = input.nextInt();/MatrixTest matrix = new MatrixTest(a);MatrixTest matrix = new MatrixTest();System.out.println(max of a array is + matrix.max(a);System.out.println(max of two array is + matrix.max(matrixA);System.out.println(average of a array is + matrix.average(a);System.out.println(average of two array is + matrix.average(matrixA);int tmp = matrix.add(matrixA, matrixA);System.out.println(one two-array add another two-arry is );for(int i = 0; i tmp.length; +i)for(int j = 0; j tmpi.length; +j)System.out.print(tmpij + t);System.out.println();/*int matrixA = 1, 2, 3, 4,5,6;int matrixB = 1, 2,3,4, 0,5,4,7, 4,5,6,8;*/System.out.println(one two-array multiply another two-arry is );int tm = matrix.multiply(matrixA, matrixB);for(int i = 0; i tm.length; +i)for(int j = 0; j = 0.0 ? + : ); return (this.realPart + str + this.imaginaryPart + i); public static void main(String args) Complex tmp = new Complex(); System.out.print(第一个复数：); Complex complexNumA = new Complex(1, 2); System.out.println(complexNumA.toString(); System.out.print(第二个复数：); Complex complexNumB = new Complex(5, -3); System.out.println(complexNumB.toString(); System.out.println(复数相加：); tmp = complexNumA.plus(complexNumB); System.out.println(tmp.toString(); System.out.println(复数相减：); tmp = complexNumA.minus(complexNumB); System.out.println(tmp.toString(); System.out.println(复数相乘：); tmp = complexNumA.times(complexNumB); System.out.println(tmp.toString(); System.out.println(复数相除：); tmp = complexNumA.divideBy(complexNumB); System.out.println(tmp.toString(); System.out.println(第一个的共轭复数：); tmp = complexNumA.conjugate(); System.out.println(tmp.toString(); System.out.println(第二个的共轭复数：); tmp = complexNumB.conjugate(); System.out.println(tmp.toString();实验（四） 继承和多态package com.xyj;public abstract class Shape implements Comparable protected abstract double getPerimeter();protected abstract double getArea();Overridepublic int compareTo(Shape o) if(this.getArea()o.getArea()return 1;else if(this.getArea()0)System.out.println(circle1circle2);else if(temp = 0)System.out.println(circle1=circle2);elseSystem.out.println(circle10)System.out.println(rectangle1rectangle2);else if(temp1 = 0)System.out.println(rectangle1=rectangle2);elseSystem.out.println(rectangle1rectangle2);实验（五） GUI程序设计package com.xyj;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.*;import java.util.Scanner;import javax.swing.*;public class Test extends JFrameprivate JButton jbtView = new JButton(View);private JTextField jtfFilename = new JTextField(12);private JTextArea jtaFile = new JTextArea();public Test()Panel p = new Panel(); p.setLayout(new BorderLayout(); p.add(new Label(Filename), BorderLayout.WEST); p.add(jtfFilename, BorderLayout.CENTER); p.add(jbtView, BorderLayout.EAST); jbtView.addActionListener(new ActionListener() /