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分享arraycopy不懂啊
class ArrayCopy
{
public static void main(String args[])
{
char a1[]={'a','b','c','d','e','f'},b1[]={'1','2','3','4','5','6'};
System.arraycopy(a1,0,b1,1,a1.length-1); //怎么快速拷贝呀?
System.out.println(new String(a1));
System.out.println(new String(b1)); //输出的为什么是1abcde呢?
byte a2[]={97,98,99,100,101,102},b2[]={65,67,68,69,70,71};
System.out.println(new String(a2)); //为什么会是abcedf呢
System.out.println(new String(b2));
}
}
{
public static void main(String args[])
{
char a1[]={'a','b','c','d','e','f'},b1[]={'1','2','3','4','5','6'};
System.arraycopy(a1,0,b1,1,a1.length-1); //怎么快速拷贝呀?
System.out.println(new String(a1));
System.out.println(new String(b1)); //输出的为什么是1abcde呢?
byte a2[]={97,98,99,100,101,102},b2[]={65,67,68,69,70,71};
System.out.println(new String(a2)); //为什么会是abcedf呢
System.out.println(new String(b2));
}
}
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shine333 2005-11-14
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System.arraycopy(a1,0,b1,0,a1.length);
{97,98,99,100,101,102}, 是abcde的ascii码
{97,98,99,100,101,102}, 是abcde的ascii码
