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Create DataInputStream from FileInputStream and read different types of data

import java.io.DataInputStream; import java.io.FileInputStream; class DataInputStreamDemo {   public static void main(String args[]) throws Exception {     FileInputStream fis = new FileInputStream(args[0]);     DataInputStream dis = new DataInputStream(fis);     System.out.println(dis.readBoolean());     System.out.println(dis.readByte());     System.out.println(dis.readChar());     System.out.println(dis.readDouble());     System.out.println(dis.readFloat());     System.out.println(dis.readInt());     System.out.println(dis.readLong());     System.out.println(dis.readShort());     fis.close();   } }