Java题库练习!!!
public class ArrayCopy
{
public static void main(String[] args)
{
int[] a = {12,3,19,2,10,13,9};
int[] b;
b = a;
System.out.println("Before Modifying:");
for (int i = 0;i<a.length;i++)
{
System.out.print("a["+i+"]=" +a[i] + " ");
}
System.out.println("");
b[3]=31;
System.out.println("After Modifying:");
for (int i = 0;i<a.length;i++)
{
System.out.print("a["+i+"]=" +a[i] +" ");
}
}
}
4．本程序为把数组a 的部分数组元素拷贝到数组b的后5个数组元素中，并且显示出数组b经修改前、后的数组元素值。
public class ArrayCopy2
{
public static void main(String[] args)
{
int[] a = new int[10];
int[] b = new int[10];