61 lines
1.6 KiB
Java
61 lines
1.6 KiB
Java
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public class Grundlagen {
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public static void main(String[] args) {
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// Hello World
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System.out.println("Hello World");
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// Zahlen Variablen
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int x = 99;
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int y = 2;
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x = x + 1;
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x = x + y;
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System.out.println(x);
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// Buchstaben Variablen
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char myA = 'a';
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System.out.println(myA);
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// If & else
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if (x > 101) {
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System.out.println("Der Wert ist grösser als 101");
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} else {
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System.out.println("Der Wert ist kleiner als 101");
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}
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// Iteration
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int anzahlDurchgaenge = 1;
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while (anzahlDurchgaenge <= 5) {
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System.out.println("Durchgang nr. " + anzahlDurchgaenge);
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anzahlDurchgaenge += 1;
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}
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// Datentypen
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byte myByte = 127;
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short myShort = 300;
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// With float the f is necassary because java otherwise treats it as a double
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// (simplified anwser)
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double myDoubleValue = 34.568956;
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float myFloatValue = 17.567f;
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// Constant always uppercase // Fixed Number
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final double PI = 3.141592876;
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int xx = 0;
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long yy = 2;
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xx++; // inkrement
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xx--; // dekrement
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xx += (int) y; // Making y (long) a int for calculation
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xx += 1; // Short for x = x +1
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yy += 4; // Short for y = y +4
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yy %= 3; // short for y = y%3 %=Modulo (Ganzahliges Geteiltdurch)
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// Square root
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double d1 = Math.sqrt(10);
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System.out.println(d1 + "noch etwas schreiben" + d1);
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}
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}
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