What are the output methods of java

This article introduces the relevant knowledge of "java output methods". In the actual case operation process, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

Usually we like to use System.out.println directly when outputting

But in fact Java also has some output, as shown in the video

System.out.println("Programmer")

This will change a line after the programmer is finished, because this println method calls the newLine() method again.

System.out.print("Learning Base")

This only output learning base camp, will not newline, you can see in the source code, only called the wirte method, no other use

System.out.printf("%s,%d","java",520);

This will format the output, replacing %s with java, %d with 520, and finally java 520.

String.format is the same as String.format, which we usually use.

//replace hello {520},{programmer learning base} with direct placeholder String formatOne = String.format("hello {%d},{%s}", 520, "programmer learning base"); System.out.println(formatOne); //with carry indentation, decimal { 100},{ 7.89} String formatTwo = String.format("{%4d},{.2f}",100,7.894652456f); System.out.println(formatTwo);

These two formatting processes eventually call the Formatter tool class.

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