java print()问题

Question

“print()打印到屏幕” 这个屏幕是指什么屏幕 在java运行的时候打印到控制台 在jsp中却打印到html文档

Answer 1

如果你在jsp里用System.out.print()打印的还是到屏幕

Answer 2

有很多种不同的print .    java.awt.Component.print(java.awt.Graphics) 
java.awt.Container.print(java.awt.Graphics) 
java.awt.print 
java.awt.print.Printable.print(java.awt.Graphics, java.awt.print.PageFormat, int) 
java.awt.print.PrinterJob.print() 
java.awt.print.PrinterJob.print(javax.print.attribute.PrintRequestAttributeSet) 
java.io.PrintStream.print(boolean) 
java.io.PrintStream.print(char) 
java.io.PrintStream.print(char[]) 
java.io.PrintStream.print(double) 
java.io.PrintStream.print(float) 
java.io.PrintStream.print(int) 
java.io.PrintStream.print(java.lang.Object) 
java.io.PrintStream.print(java.lang.String) 
java.io.PrintStream.print(long) 
java.io.PrintWriter.print(boolean) 
java.io.PrintWriter.print(char) 
java.io.PrintWriter.print(char[]) 
java.io.PrintWriter.print(double) 
java.io.PrintWriter.print(float) 
java.io.PrintWriter.print(int) 
java.io.PrintWriter.print(java.lang.Object) 
java.io.PrintWriter.print(java.lang.String) 
java.io.PrintWriter.print(long) 
javax.jnlp.PrintService.print(java.awt.print.Pageable) 
javax.jnlp.PrintService.print(java.awt.print.Printable) 
javax.print 
javax.print.DocPrintJob.print(javax.print.Doc, javax.print.attribute.PrintRequestAttributeSet) 
javax.print.MultiDocPrintJob.print(javax.print.MultiDoc, javax.print.attribute.PrintRequestAttributeSet) 
javax.swing.JComponent.print(java.awt.Graphics) 
javax.swing.JTable.print() 
javax.swing.JTable.print(javax.swing.JTable.PrintMode) 
javax.swing.JTable.print(javax.swing.JTable.PrintMode, java.text.MessageFormat, java.text.MessageFormat) 
javax.swing.JTable.print(javax.swing.JTable.PrintMode, java.text.MessageFormat, java.text.MessageFormat, boolean, javax.print.attribute.PrintRequestAttributeSet, boolean) 你的是哪一种..

Answer 3

你的这个Print()一般是在程序测试的时候用到,主要验证你想要的结果是否正确?你的程序是否正确?
而真正应用到程序里,一般也不用到Print()

Answer 4

因为Java应用程序与JSP(Servlet)的实现类不一样啊

Answer 5

System.out.print()//打印到后台out.print()//在前台也就是页面上打印

Answer 6

JDK 6.0里面能查到的print相关的方法：http://api.java2000.net/print