JAVA语言程序设计题请高手回答
Java\u8bed\u8a00\u7a0b\u5e8f\u8bbe\u8ba1\u9898\u3002\u6c42\u9ad8\u624b\u5e2e\u5fd9\u3002\u7b54\u6848\u4f9d\u6b21\u662f
1\uff081\uff0915 \uff082\uff0948 \uff083\uff0945 \uff084\uff096.5
2\uff081\uff09false \uff082\uff09false \uff083\uff09true \uff084\uff09true
public class Main {public static void main(String[] args) throws Exception {Circle c1 = new Circle();c1.setRadius(5);Circle c2 = new Circle(8);int compareResult = compareCircle(c1, c2);if (compareResult > 0) {System.out.println("c1 \u6bd4 c2 \u5927");} else if (compareResult c2.getRadius()) { // c1\u534a\u5f84\u5927\u4e8ec2return 1;} else if (c1.getRadius() < c2.getRadius()) { // c1\u534a\u5f84\u5c0f\u4e8ec2return -1;}return 0; // c1\u534a\u5f84\u7b49\u4e8ec2}}class Circle {private double radius;public Circle() {}public Circle(double radius) {this.radius = radius;}public double getRadius() {return radius;}public void setRadius(double radius) {this.radius = radius;}}\u8fd0\u884c\u7ed3\u679c\uff1a
public class Complex {
private float real; //实部
private float imagin;//虚部
public Complex(){//无参默认为(0, 2)
this.real = 0F;
this.imagin = 2F;
}
public String toString(){//以a+bi的形式输出的复数
return real + "+" + imagin + "i";
}
// a+ bi + (c+ di) = (a+c) + (b+d)i
public static Complex add(Complex c1, Complex c2){//两个复数相加
Complex complex = new Complex();
complex.setReal(c1.getReal() + c2.getReal());
complex.setImagin(c1.getImagin() + c2.getImagin());
return complex;
}
// a+ bi ==? c + di----> a==c, b==d --> it's true
public static boolean equal(Complex c1, Complex c2){//比较两个复数是否相等
return c1.getReal() == c2.getReal() && c1.getImagin() == c2.getImagin();
}
//a + bi + f = (a+f) + bi
public static Complex addFloat(Complex c1, float fValue){//复数加一浮点数
c1.setReal(c1.getReal() + fValue);
return c1;
}
public float getImagin() {
return imagin;
}
public void setImagin(float imagin) {
this.imagin = imagin;
}
public float getReal() {
return real;
}
public void setReal(float real) {
this.real = real;
}
}
//boss Wang
package example;
public class ComplexClass {
private double real,imag;
public ComplexClass()
{
this.real = 0.0;
this.imag = 0.0;
}
public ComplexClass(double real,double imag)
{
this.real = real;
this.imag = imag;
}
public void setomplex(double real,double imag)
{
this.real = real;
this.imag = imag;
}
public void complexAdd(ComplexClass complex)
{
ComplexClass add = new ComplexClass();
add.real = (this.real + complex.real);
add.imag = (this.imag + complex.imag);
System.out.println(this.toString()+" 和 "+complex.toString()+" 的和是 "+add.toString());
}
public void complexdecrease(ComplexClass complex)
{
ComplexClass dec = new ComplexClass();
dec.real = (this.real - complex.real);
dec.imag = (this.imag - complex.imag);
System.out.println(this.toString()+" 和 "+complex.toString()+" 的差是 "+dec.toString());
}
public void complexCompare(ComplexClass complex)
{
ComplexClass max;
if(this.real == complex.real&&this.imag == complex.imag)
System.out.println(this.toString()+" 和 "+complex.toString()+" 一样大！！！");
if(this.real > complex.real)
System.out.println(this.toString()+" 和 "+complex.toString()+" 中 "+this.toString()+" 大！！!");
if(this.imag > complex.imag)
System.out.println(this.toString()+" 和 "+complex.toString()+" 中 "+this.toString()+" 大！！!");
else
System.out.println(this.toString()+" 和 "+complex.toString()+" 中 "+complex.toString()+" 大！！!");
}
public String toString()
{
String complexString;
if(this.imag == 0)
complexString = String.valueOf(this.real);
else if(this.real == 0)
complexString = String.valueOf(this.imag+"i");
else if(this.imag > 0)
complexString = String.valueOf(this.real + "+" + this.imag + "i");
else
complexString = String.valueOf(String.valueOf(this.real) + this.imag + "i");
return complexString;
}
}
//boss Wang
package example;
public class test {
public static void main(String[] args) {
ComplexClass a = new ComplexClass(1,2);
ComplexClass b = new ComplexClass(2,3);
a.toString();
b.toString();
a.complexAdd(b);
a.complexdecrease(b);
a.complexCompare(b);
}
}
我懒得改；
自己去改改 不难 大体都在 这是我学的时候编的
public class Plural{
private float real;
private float virtual;
//无参构造函数
Plural(){
real=0f;
virtual=0f;
}
Plural(float r,float v){
real=r;
virtual=v;
}
//返回以a+bi的形式输出的复数
String toString(){
return real+"+"+virtual+"i";
}
//与另一个复数相加
void add(Plural p){
real+=p.real;
virtual+=p.virtual;
}
//与一个浮点数相加
void add(float a){
real+=a;
}
//比较两个复数是否相等
boolean equals(Plural p){
return real==p.real&&virtual==p.virtual;
}
}
一、填空
1.方法名；参数列表；个数；类型；顺序
2.this
3.值传递
4.软件重用；程序结构；类；类
5.InpitStreamReader；OutputStreamWriter
6.几个程序或任务的能力
二、选择
A B A D D B C B D A C C
三、判断
1.2.3.7错，其余对
四、
通过按钮激活change()文件。
<Form>
<Input type="button"Value=""onClick="change()">
</Form>
这么简单的题目还要高手回答！
随便一个菜鸟都能回答。
百度知道成了帮学生做作业的地方了么？悲哀！
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