Esimene Õpigrupp

.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.gitignore

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+bin/

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>opigrupp</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

src/opigrupp1/Meetotid.java

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+package opigrupp1;
+
+public class Meetotid /* see on nimi */ {
+
+	private static int tereTere() {
+		return 1;
+	}
+	
+	public static int veelTere(int saadetis){
+		saadetis = saadetis + 1;
+		return saadetis;
+	}
+	
+	public static void main(String[] args) {
+		int mingimuutuja = tereTere();
+		int veelMuutuja = veelTere(5);
+		System.out.println(mingimuutuja);
+		System.out.println(veelMuutuja);
+	}
+	
+
+}

src/opigrupp1/Muutujad.java

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+package opigrupp1;
+
+import java.util.InputMismatchException;
+import java.util.Scanner;
+
+public class Muutujad {
+
+	public static void main(String[] args) {
+		int number;
+		double komakohaga = 5.6;
+		boolean tingimus = false;
+		char minumuutuja = 'a';
+		
+		String minuTekst = "Tere maailm!";
+		
+		int a = 5;
+		double b = 2;
+		double c = a / b;
+		//System.out.printf("%d", c);
+		//System.out.printf("%.3f", c);
+		//System.out.printf("  %s  rebane", minuTekst);
+		
+		
+		
+		
+		
+		
+		
+		
+		
+		
+		
+		
+		
+		int[] veelmassiive;
+		int[] massiiv = {1, 2, 3, 99};
+		//int[] j2rgminemassiiv = new int[] {1,3,4};
+		int[][] kaksDMassiiv = {
+								{1, 2},
+								{3, 4},
+								{5, 6}
+							   };
+		
+		//System.out.println(kaksDMassiiv[0][1]);  //prints 2
+		
+		String[] minuLaheTekst = new String[5];
+		
+		// lisame 1. sahti teksti
+		minuLaheTekst[0] = "Kass";
+		
+		// lisame 2. sahti teksti
+		minuLaheTekst[1] = "Tere Koer!";
+		
+		// see ei toimi sest 42 ei ole String tüüp!
+		//minuLaheTekst[2] = 42;
+		
+		
+		massiiv[0] = 42; // esimese sahtli väärtus on 42
+		massiiv[3] = 5;
+		massiiv[2] = 5*5; //kolmanda sahtli väärtus on 5 korda 5
+		
+		
+		
+		
+		//System.out.println(massiiv[0] + " " + massiiv[3]);
+		
+		int[] kahegajaguvad = new int[100];
+		
+		for(int i = 0; i < 100; i++){
+			kahegajaguvad[i] = i;
+		}
+		
+		String minuTest = "salakala";
+		
+		//System.out.println(minuTest.length());
+		
+		Scanner input = new Scanner(System.in);
+		//System.out.print("input: ");
+		//int s = input.nextInt();
+		int s = getInt();
+		System.out.println(s);
+		
+		
+	}
+	
+	public static int getInt() {
+		int asdf;
+		for (asdf = -1; asdf != 2;) {
+			try {
+				Scanner input = new Scanner(System.in);
+				System.out.print("input: ");
+				asdf = input.nextInt();
+				//break;  // exit while
+			} catch(InputMismatchException e)  {
+				//System.out.printf("u fuked up mate: %s", e);
+			}
+		}
+		return asdf;
+	}
+
+}

src/opigrupp1/kaksDMasiiv.java

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+package opigrupp1;
+
+public class kaksDMasiiv {
+
+	public static void main(String[] args) {
+		int[][] kaksDMassiiv = {{1, 2},{3, 4},{5, 6}};
+		int[][] kaksDMassiiv2 = new int[3][2];
+
+		//System.out.println(kaksDMassiiv[0][1]);  //prints 2
+		//System.out.println(kaksDMassiiv[2][0]);  //prints 5
+		
+		
+							// = new int[7];
+		int[] arvud = new int[]{1,3,0,5,0,6,0};
+		
+		
+		int arv = 0;
+		//need kolm rida teevad sama asja
+		arv = arv + 1;
+		arv += 1;
+		arv++;
+		
+		arv = arv - 1;
+		arv -= 1;
+		arv--;
+		
+		arv = arv * 1;
+		arv *= 1;
+		// kolmandata varianti pole
+		
+		arv = arv / 1;
+		arv /= 1;
+		// kolmandata varianti pole ka siin
+		
+		// minimaalne for tsükkel
+		for (int i = 1; i < 10; i = i + 4) {
+			System.out.println(i);
+		}
+		//System.out.println(i); // see rida feilib sest i ei eksisteeri enam
+
+		int mingi = 3;
+		switch (mingi) {
+			case 1:
+				System.out.println("kirjutati 1");
+				break;
+			case 2:
+				//
+		}
+		
+		// leian mitu nulli on massiivis
+		int nullideArv = 0;
+		for(int i = 1; i < arvud.length; i = i + 2){
+			if(arvud[i] == 0){
+				//nullideArv = nullideArv + 1;
+				nullideArv++;
+			}
+		}
+		System.out.println("Nullide arv massiivis on " + nullideArv);
+	}
+
+}