疯狂JAVA讲义第三章之数组篇

package test;   /** * Desription: * @author orangebook *<br/>网站：《a href="http://www.crazyit.org">疯狂Java联盟</a> *<br/> */   public class javadocTest {     /**      * 简单的测试Field      */     protected String name;     public static void main(String[] args)     {         long binVall=16;         binVall=binVall>>>2;         System.out.println(binVall);         System.out.println("hello world");     }   }

 

package test; /** * Description: * <br/>网站：<a href="http://www.crazyit.org">疯狂 Java 联盟</a> * <br/>Copyright (c) , 2001-2012,Yeeku.H.Lee * <br/>This program is protected by copyright laws. * <br/>Program Name: * <br/>Date: * @author orangebook * @version 1.0 */ public class Test { /** * 简单测试 Fiedld */     public int age;     public Test()     {              }      }

 

 

 

 

 

 

package test; public class javadocTest {     protected String name;     public static void main(String[] args)     {         String[] test;         test=new String[4];         test[0]="疯狂Java讲义";         test[1]="轻量级Java EE 企业应用实战";         for(int i=0;i<test.length;++i)         System.out.println(test[i]);     }   }

 

package test;   public class javadocTest {     public static void main(String[] args) {         String[] test;         test = new String[4];         test[0] = "疯狂Java讲义";         test[1] = "轻量级Java EE 企业应用实战";         test[2] = "疯狂Android讲义";         for (String book : test)             System.out.println(book);     } }

 

package test;   public class javadocTest {     public static void main(String[] args) {         int[] a = { 5, 7, 20 };         int[] b = new int[4];           System.out.println("b数组的长度为：" + b.length);         for (int i = 0, len = a.length; i < len; ++i) {             System.out.println(a[i]);         }         for (int i = 0, len = b.length; i < len; ++i) {             System.out.println(b[i]);         }         b = a;         System.out.println("b数组的长度为：" + b.length);     } }

 

package test;   public class javadocTest {       public static void main(String[] args) {         Person[] students;           students = new Person[2];         Person zhang = new Person();         zhang.age = 15;         zhang.height = 158;         Person lee = new Person();         lee.age = 16;         lee.height = 161;         students[0] = zhang;         students[1] = lee;         lee.info();         students[1].info();         students[0].info();     } }   class Person {     public int age;     public double height;       public void info() {         System.out.println("我的年龄是：" + age + ",我的身高是：" + height);     } }

 

package test;   public class javadocTest {       public static void main(String[] args) {         int[][] a;         a = new int[4][];         // 把a当成一维数组，查看每个数组元素的值         for (int i = 0, len = a.length; i < len; ++i) {             System.out.println(a[i]);         }         a[0] = new int[2];         a[0][1] = 6;         for (int i = 0, len = a[0].length; i < len; ++i) {             System.out.println(a[0][i]);         }       } }

 

package test;   import java.util.Arrays;   public class javadocTest {       public static void main(String[] args) {         int[] a = new int[] { 3, 4, 5, 6 };         int[] a2 = new int[] { 3, 4, 5, 6 }; //用来判断两个数组是否相等         System.out.println("a的数组和a2数组是否相等：" + Arrays.equals(a, a2));         int[] b = Arrays.copyOf(a, 6);         System.out.println("a的数组和b数组是否相等：" + Arrays.equals(a, b)); //将一个数组转化为字符串         System.out.println("b数组元素为" + Arrays.toString(b));         Arrays.fill(b, 2, 4, 1); //对数组中的元素排序         Arrays.sort(b);         System.out.println("b数组的无线为：" + Arrays.toString(b));       } }