example3.java

来自「本java源程序包括了大量的学习程序（共27章）方便大家学习」· Java 代码 · 共 45 行

public class Example3 
{
	//定义各种类型的类变量
	private int a = 100;
	private char c = 'C';
	private float f = 3.0f;
	private double d = 4.0;
	private String str = "Hello";
	
	public Example3()    //构造方法
	{
		//将方法的返回值输出
		System.out.println(getInt());
		System.out.println(getChar());
		System.out.println(getFloat());
		System.out.println(getDouble());
		System.out.println(getString());
	}
	
	//获取整型变量,返回值为int型
	public int getInt()    
	{return a;}
	
	//获取字符型变量,返回值为char型
	public char getChar()
	{return c;}
	
	//获取单精度型变量,返回值为float型
	public float getFloat()
	{return f;}

	//获取双精度型变量,返回值为double型
	public double getDouble()
	{return d;}
	
	//获取字符串对象变量,返回值为String型
	public String getString()
	{return str;}
	
	public static void main(String[] args) 
	{
		new Example3();
	}
}