Rational 有理数(分数) 1.分子 numerator,分母denominator 2.构造方法两个 3.生成getter和setter方法 4.求两个分数的和 5.toString方法,"1/2"

1. 分子和分母是有理数的组成部分，其中分子代表有理数的整数部分，分母代表有理数的分数部分。例如，有理数1/2中，分子为1，分母为2。

2. 构造有理数的方法有两个，一种是直接给出分子和分母，例如Rational r = new Rational(1,2)；另一种是只给出分子，分母默认为1，例如Rational r = new Rational(3)表示有理数3/1。

3. 生成getter和setter方法可以通过IDE自动生成，也可以手动编写。例如：

public int getNumerator() {
return numerator;
}

public void setNumerator(int numerator) {
this.numerator = numerator;
}

public int getDenominator() {
return denominator;
}

public void setDenominator(int denominator) {
this.denominator = denominator;
}

4. 求两个分数的和需要先将它们通分，然后将分子相加得到新的分子，分母保持不变。例如，要求1/2和3/4的和，先将它们通分为4/8和6/8，然后将分子相加得到10，分母为8，所以它们的和为10/8，即5/4。

5. toString方法可以将有理数以"分子/分母"的形式输出。例如，有理数1/2的toString方法输出"1/2"。

相关问题

Rational有理数（分数）1.分子numerator,分母denominator 2.构造方法2个3.生成getter和setter方法4.求两个分数的和5.ToString方法"1/2"

1. 分子numerator, 分母denominator

public class Rational {
    private int numerator;
    private int denominator;

    // 构造方法和其他方法略
}

2. 构造方法2个

public Rational(int numerator, int denominator) {
    this.numerator = numerator;
    this.denominator = denominator;
}

public Rational(int numerator) {
    this.numerator = numerator;
    this.denominator = 1;
}

3. 生成getter和setter方法

public int getNumerator() {
    return numerator;
}

public void setNumerator(int numerator) {
    this.numerator = numerator;
}

public int getDenominator() {
    return denominator;
}

public void setDenominator(int denominator) {
    this.denominator = denominator;
}

4. 求两个分数的和

public Rational add(Rational other) {
    int newNumerator = this.numerator * other.denominator + other.numerator * this.denominator;
    int newDenominator = this.denominator * other.denominator;
    return new Rational(newNumerator, newDenominator);
}

5. ToString方法"1/2"

@Override
public String toString() {
    return numerator + "/" + denominator;
}

用java编写代码,条件如下,Rational 有理数(分数) 1.分子 numerator,分母denominator 2.构造方法两个 3.生成getter和setter方法 4.求两个分数的和 5.toString方法,"1/2"

public class Rational {
private int numerator; // 分子
private int denominator; // 分母

public Rational(int numerator, int denominator) {
this.numerator = numerator;
this.denominator = denominator;
}

public Rational() {
this.numerator = 0;
this.denominator = 1;
}

public int getNumerator() {
return numerator;
}

public void setNumerator(int numerator) {
this.numerator = numerator;
}

public int getDenominator() {
return denominator;
}

public void setDenominator(int denominator) {
this.denominator = denominator;
}

public Rational add(Rational r) {
int newNumerator = numerator * r.denominator + r.numerator * denominator;
int newDenominator = denominator * r.denominator;
return new Rational(newNumerator, newDenominator);
}

@Override
public String toString() {
return numerator + "/" + denominator;
}
}