基本数据类型和引用类型的初始值

package com.array;

/**
 * @Description 测试初始值
 * @author FuJianyong
 * 2015-1-22上午10:31:53
 */
public class ArrayTest {
    
	ArrayTest at;
	String str;
	byte bt;
	short s;
	int i;
	long l;
	float f;
	double d;
	char c;
	boolean b;
	/**
	 * 基本数据类型和引用类型初始值
	 */
	public void testInitialize() {
		System.out.println(str+" "+bt+" "+s+" "+i+" "+l+" "+f+" "+d+" "+c+" "+b+" ");	
	}
	
	ArrayTest[] atA = new ArrayTest[1];
	String[] strA = new String[1];
	byte[] btA = new byte[1];
	short[] sA = new short[1];;
	int[] iA = new int[1];;
	long[] lA = new long[1];;
	float[] fA = new float[1];;
	double[] dA = new double[1];;
	char[] cA = new char[1];;
	boolean[] bA = new boolean[1];;
	/**
	 * 基本数据类型和引用类型数组初始值
	 */
	public void testInitializeArray() {
		System.out.println(strA[0]+" "+btA[0]+" "+sA[0]+" "+iA[0]+" "+lA[0]+" "+fA[0]
		                   +" "+dA[0]+" "+cA[0]+" "+bA[0]+" ");
	}
    /** 
     * test
     * @param args
     * output
     * null 0 0 0 0 0.0 0.0  false
     */
    public static void main(String[] args) {
    	ArrayTest at = new ArrayTest();
    	at.testInitialize();
    	at.testInitializeArray();
    }
}

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