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api.io.object import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectOutputStream; public class Test01 { public static void main(String[] args) { int[] data = new int[] {4,1,9,15,11,6,2}; boolean[] flag = new boolean[] {true,true,false}; String day = "WED"; //객체 입출력 ObjectOutputStream oos = null; try { oos = new ObjectOutputStream(new FileOutputStream("arrays.txt")); /..

api. io.charstream import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; public class Test01 { public static void main (String[] args) { BufferedWriter bw = null; try { bw = new BufferedWriter(new FileWriter("output.log")); bw.write("이게 마지막이다"); bw.newLine(); // 다음줄로 이동 bw.write("배고프다"); bw.newLine(); bw.write("뭐가 문제야 대체"); } catch (IOException e) { e.printStackTr..

API - String import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; public class Test01 { public static void main (String[] args) { // 문자열 저장 File target = new File("files", "string1.txt"); OutputStream out = null; String text = "어둠만이 나의 전부였던 동안\r\n" + "숨이 벅차도록 달려왔잖아\r\n" + "Never say “time's up”\r\n" +..