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import java.io.*;
what's the output ?
public class TestIOApp {
public static void main(String args[]) throw IOException {
RandomAccessFile file = new RandomAccessFile(“test.txt”, “rw”);
file.writeBoolean(true);
file.writeInt(123456);
file.writeInt(7890);
file.writeLong(10000000);
file.writeInt(777);
file.writeFloat(.0001f);
file.seek(5);
System.out.println(file.readInt());
file.close();
}
}
answer:7890
what's the output ?
public class TestIOApp {
public static void main(String args[]) throw IOException {
RandomAccessFile file = new RandomAccessFile(“test.txt”, “rw”);
file.writeBoolean(true);
file.writeInt(123456);
file.writeInt(7890);
file.writeLong(10000000);
file.writeInt(777);
file.writeFloat(.0001f);
file.seek(5);
System.out.println(file.readInt());
file.close();
}
}
answer:7890
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caolyf 2001-12-13
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yes
zhurongxue 2001-12-13
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答案可是我供的哟。：）
boolean型写进文件时，是占一个字节
int 写进文件占四个字节
而RandomAccessFile的seek以字节来计算。
因此。：）分到手也。哈。
祝融吹血到此一。。。。。。。
boolean型写进文件时，是占一个字节
int 写进文件占四个字节
而RandomAccessFile的seek以字节来计算。
因此。：）分到手也。哈。
祝融吹血到此一。。。。。。。
zhurongxue 2001-12-13
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我来了.哈。给分吧
zhaofeiyu 2001-12-13
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writeBoolean(true)--> 1 byte
writeInt(122123)----> 4 bytes
seek(5)-------------> got it
yes! isn't it?!
writeInt(122123)----> 4 bytes
seek(5)-------------> got it
yes! isn't it?!
zhaofeiyu 2001-12-13
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thank you everyone!I got it!
writeBoolean(true)--->one byte
writeInt(122312)----->four bytes
seek(5)-------------->five bytes
yes!
writeBoolean(true)--->one byte
writeInt(122312)----->four bytes
seek(5)-------------->five bytes
yes!
Patrick_DK 2001-12-13
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不理解，推一把
三杯倒 2001-12-13
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