まずはJavaのプログラムを作ってみる
値を表示する
変数を宣言して値を代入し、その結果を標準出力へ出力する。
public class Variables { public static void main(String[] args) { byte data1 = 127; short data2 = 32767; int data3 = 2147483647; float data4 = 1.2345678F; double data5 = 123456789.012345; char data6 = 'z'; long data7 = 9223372036854775807L; String data8 = "文字列定数"; boolean data9 = true; System.out.println("byteVariable = " + data1); System.out.println("shortVariable = " + data2); System.out.println("intVariable = " + data3); System.out.println("floatVariable = " + data4); System.out.println("doubleVariable = " + data5); System.out.println("charVariable = " + data6); System.out.println("longVariable = " + data7); System.out.println("stringVariable = " + data8); System.out.println("booleanVariable = " + data9); } }
実行結果
byteVariable = 127
shortVariable = 32767
intVariable = 2147483647
floatVariable = 1.2345678
doubleVariable = 1.23456789012345E8
charVariable = z
longVariable = 9223372036854775807
stringVariable = 文字列定数
booleanVariable = true